884 Professional VA Universal system solution for voltammetry and CVS 884 Professional VA and viva – flexible, convenient, and secure! 02 The 884 Professional VA in combination with viva soft-More convenience ware is currently the most modern and most flexible Another key benefit of viva is the integrated database. analy sis system for voltammetry and polarography. In addition to automatic data acquisition and evaluation, viva also enables convenient management of the mea-More flexibility suring results. The 884 Professional VA is outstanding for its unique flexi bility. Due to its modular design, the system can be More security expanded at any time with additional components such User administration with freely definable access rights as as dosing devices, pumps, and sample changers. This well as automatic backup functions ensure a high level of flexi bility is supported by the viva PC software. viva gives data security. Even better: to ensure that the solutions, users unlimited freedom to program their own applica-and electrodes are checked at regular intervals, they can tion-oriented methods. Commonly used methods are be monitored with the GLP (Good Laboratory Practice) already available as templates to facilitate familiarization functions. with the system. Access to all method parameters is a matter of course. The most important applications • Determination of transition metals using polarography or stripping voltammetry • Speciation analysis • Determination of organic additives (brighteners, levelers, suppressors) in electroplating baths using CVS The most important benefits at a glance 884 Professional VA • Compact, space saving design • Maximum flexibility due to easily exchangeable measuring head • Trace analysis and CVS in one instrument • Customized measuring system with versatile automation options • Guaranteed accuracy and trueness due to the integrated calibrator viva • Maximum flexibility due to individualized, task-focused method programming • Intelligent user support based on logical decisions, e.g. proportional standard addition, measuring with or without preconcentration • Reliable and reproducible calculations of the results • Data security and traceability of the measurement results • Database with numerous functions for convenient viewing and assessment of measurement results Application 1 – Trace analysis 04 Analysis of heavy metals using voltammetry Voltammetry is outstanding for its combination of low Typical limits of detection detection limits and low sensitivity to interferences arising Antimony SbIII/SbV 200 ppt from high concentrations of dissolved solids. Moreover, it Arsenic AsIII/AsV 100 ppt is a quite affordable technologoy and operating costs are Bismuth Bi 500 ppt low – especially in comparison with spectroscopic methods Lead Pb 50 ppt such ICP-MS. Cadmium Cd 50 ppt Chromium CrIII/CrVI 25 ppt Total concentration and speciation Cobalt Co 50 ppt Spectroscopic methods can determine only the total Iron FeII/FeIII 50 ppt me tal concentration. In contrast, voltammetry can also Copper Cu 50 ppt be used to differentiate between different oxidation Molybdenum Mo 50 ppt states of metal ions or between free and bound metal Nickel Ni 50 ppt ions. This allows statements to be made on the biological Platinum Pt 0.1 ppt availability and on the toxicity of heavy metals, e.g., in Rhodium Rh 0.1 ppt environmental research. Mercury Hg 100 ppt Selenium SeIV/SeVI 300 ppt High ion concentrations? Not a problem with VA! Thallium Tl 50 ppt Samples with high ion concentrations are not a prob-Uranium U 25 ppt lem for voltammetry. Hence, voltammetry is ideal for the Tungsten W 200 ppt analysis of: Zinc Zn 50 ppt • Seawater, salts, pure chemicals • Electroplating baths 05 Determination of organics, anions, and elements Voltammetry is not just limited to metal determination. It Certain special anions can also be determined by voltam-may also be used to determine a wide variety of organic metry. Of particular interest is the analysis of environmen-compounds by polarography. Voltammetry thus permits tally relevant species such as cyanide, sulfi de, nitrite, and a simple determination of impurities in organic synthesis, nitrate. The polarographic determination of elemental e.g., 4-carboxybenzaldehyde in terephthalic acid or free sulfur in gasoline is an application that is particularly used styrene in polystyrene. Active pharmaceutical ingredients, in vehicle construction and in petrochemistry. e.g., thiomersal in storage solutions for contact lenses, can be quantifi ed by polarography. Typical applications • Metal ions, e.g., Cd, Pb, Ni, Co, Fe, As in water samples • Additives and impurities in electroplating baths and in electrolytic metal refi ning • Corrosion indicators (Cu, Fe, etc.) in boiler feed water • Ultratrace determination of metal species (Fe(II), Fe(III), Cr(III), Cr(VI), Cd, Pb, Co, etc.) in seawater • Fe(II) in iron sucrose injection solutions • Iodide and iodate in sodium chloride solutions and glacial acetic acid Typical voltammogram nickel (1.7 μg/L) and cobalt (n/a) in seawater Application 2 – Determination of organic additives with CVS «Cyclic Voltammetric Stripping» (CVS) and «Cyclic Pulse their effi ciency in the electroplating process is measured. 06 Voltammetric Stripping» (CPVS) are important methods Due to the different effects of the additives in the electro-used in the electroplating industry for the determination plating process, different measuring and calibration tech-of organic additives in electroplating baths. This method niques are available for the analysis. plays a crucial role in production control for many types of technical coatings, particularly in the manufacturing Dilution Titration (DT) of printed circuit boards and semiconductors. Quantita-The well-established Dilution Titration (DT) technique can tive determination of the additives takes place indirectly be used to determine the concentration of the suppres-via their infl uence on the plating of the principal compo-sor component. Using the innovative smartDT, the execu-nent of the electroplating bath. Since the measurement tion of this determination is now even faster and more is based on an electrode reaction that corresponds to the effi cient than before. production process, the activity of the additives and thus Typical voltammogram Calibration curve and determination with smartDT (Modifi ed) Linear Approximation Technique (M)LAT MLAT or LAT is the calibration technique of choice when it comes to brightener determination. A wide array of electroplating baths can be analyzed by using either CVS or CPVS measurement techniques (for pulse-plating pro-cedures or electrolytes containing iron). Response Curve (RC) The Response Curve is used for the determination of levelers, which are increasingly popular as a third additive component in modern electroplating baths. 07 Save time and money with the 884 Professional VA In order to reduce cost of ownership per determination, with other systems. Furthermore, the duration of the it is possible with the 894 Professional VA to reduce the analysis can also be reduced. This increases sample amount of reagents needed significantly* in comparison through put and helps keeping cost of ownership low. The most important applications • Suppressor determination with DT (Dilution Titration) • Brightener determination with MLAT (Modified Linear Approximation Technique) • Brightener determination with LAT (Linear Approximation Technique) • Leveler determination with RC (Response Curve) • Chronopotentiometric measurement (CP) *Up to 70% of the quantity normally used The 884 Professional VA in detail 08 The basic configuration of the 884 Professional VA consists of the instrument, the separately available electrode kit for the respective application, and the matching measuring head. This already makes a full-fledged analysis system. An integrated calibrator and the newly designed potentiostat that is extremely accurate in all measuring ranges provide for superior accuracy and sensitivity of measurements. Fast method change due to detachable measuring 09 head The new detachable measuring head means that the measuring system can be refitted for a different application in a matter of seconds. All the electrodes and tubing connections can be replaced quickly and simply. Wide selection of sensors There is a versatile selection of suitable electrodes available for the different applications. Superior reliability of measurements due to integrated calibrator The 884 Professional VA has an integrated, certified calibrator. It is used to readjust the potentiostat before each measurement. Even in the case of fluctuating ambient conditions (temperature, humidity, etc.), this ensures that the measurement is always accurate and reliable. High performance on a small footprint With its footprint of only 18.8 cm × 45.2 cm, the 884 Pro - fessional VA takes up very little space on the labora tory bench. The modular design provides the highest convenience and maximum flexibility to suit your requirements. Powerful communication 4 MSB connectors permit the operation of several 800 Dosino-type dosing devices. The 884 Professional VA is connected to the computer via USB. An integrated USB hub provides connections for additional PC peripheral devices, e.g., printers or barcode readers. Metrohm VA systems – flexible automation 10 Flexible and modular MVA-23 884 Professional VA automated for CVS Due to the modular concept, a manually operated 884 The MVA-23 884 Professional VA automated for CVS Professional VA can be easily upgraded to a fully auto-is the fully automated solution for CVS determinations. mated analysis system. The 884 Professional VA grows Using an 858 Professional CVS Sample Processor, up to with the requirements of your laboratory. 56 samples for a suppressor determination or up to 28 samples for a brightener determination can be analyzed 884 Professional VA manual for their additive content. An unlimited combination of Even the manual version of the 884 Professional VA en-different calibration techniques is also possible. Depend-ables reliable analysis. The solutions necessary for the de-ing on the chosen method, the sample is transferred with termination are added manually. Of course, all the avail-an 800 Dosino or a peristaltic pump that is integrated able calibration and current measuring techniques are in the sample changer. The possibility of recalibrating supported without limitation. methods during a sample series guarantees the highest accuracy. 884 Professional VA semiautomated Routine analysis is much more user-friendly when the solutions are added automatically. The 884 Professional VA semiautomated is recommended for routine determination of trace metals or organic additives in individual samples. Determinations can be carried out easily with minimum intervention by laboratory personnel. All auxi li-ary solutions and, if necessary, the sample are added automatically with an 800 Dosino. The basic version includes two 800 Dosinos for two auxili-ary solutions. An optional accessory kit allows simple expansion to four or more dosing devices. The optional 843 Pump Station can be used to rinse the measuring vessel automatically after each determination. This enhances both user convenience and measuring accuracy because the need for user intervention is reduced to a minimum. MVA-22 884 Professional VA automated for VA The MVA-22 884 Professional VA automated is a fully automated system with a sample changer for the voltam-metric determination of heavy metals in routine laboratory work. If an MVA-22 is used, the samples are automa tically transferred by a 919 IC Autosampler plus for VA using the integrated peristaltic pump. Up to 28 samples can be determined in a series. System modules Manual 11 The 884 Professional VA is the core component of the 884 Professional VA voltammetry system. When combined with the appropriate Measuring head measuring head for rotating disk electrodes, for screen printed electrodes (SPE), or for the Multi-Mode Electrode Electrode kit pro, the corresponding electrode kit and the viva software, viva it is a fully functioning manual measurement system. Semiautomated Dosinos are used for the convenient, automated addition Kit with the fi rst 2 Dosinos of solutions. Corresponding kits containing the necessary Expansion kit with 2 Dosinos accessories make it easy to set up the connections. The rinsing equipment is used to empty and rinse the Rinsing equipment measuring vessel automatically after each measurement. Automated Sample changers enable automatic processing of sample 919 IC Autosampler plus series. The 919 IC Autosampler plus is suitable for small 858 Professional Sample Processor sample series, whereas the 858 Professional Sample Processor with its robotic arm is used for larger-sized series. viva – the new Metrohm software for voltammetry 12 viva is the most powerful software for VA and CVS determinations. Easy to use and highly fl exible, viva enables individual and task-focused method programming for voltammetry and CVS. The userfriendliness of the software is evident in the «Workplace» of the user interface. All of the information required for the determination is presented here. It goes without saying that the «Workplace» can be individually confi gured so that only the data relevant to the user is displayed. The «Run» window is the «cockpit» of viva software, from 13 here to the user controls all measurements. The appropriate method, any sample identifi cation data, and the sample quantities, among other things, are defi ned here. With just a few mouse clicks, a sample table for executing a determination series can be compiled and then saved to any available storage medium for later use. Animated graphics and text information in the «Live display» window provide the user with an overview of the progress of the current measurement. The voltammogram in progress, the remaining measuring time, and the status of any pumps or Dosinos are additional real-time information available to the user there. The method used and the associated evaluation parameters are logically structured and clearly displayed in the «Method» window. The current command is highlighted in color during a measurement. Curves The measured voltammograms are superimposed on tion curve and the measurement results can be displayed each other in the curve window. The associated calibra-by simply switching between the two. viva – smart features for superior usability 14 viva is the fi rst and only voltammetry software that enables individual, task-focused method programming. viva does not force the user to follow rigid, predefi ned measuring sequences. Instead, methods can be programmed step by step adding command by command and following the logic of the application at hand – it is that simple! It is even possible to have commands executed simultaneously! Commonly used method runs are already available as viva supports the user with numerous smart assist func-templates to facilitate familiarization with the system. tions. The optimum standard addition volumes, for ex-These can be adapted and expanded as required. ample, can be calculated automatically by viva for each deter mination. With viva, users no longer have to think about calculat-the method. and even the appropriate prefi x for the units ing results – that is all done automatically. Volumes, too of the result (µg/L, mg/L, etc.) are determined automati-are automatically calculated according to the settings of cally by viva. viva – user-friendly data management and maximum security All determinations are stored in the viva database. 15 The determinations can be viewed in the «Database» program part, along with all of the parameters for the determination, the method, and the instrument. The determination overview can be confi gured according meters for the determination, the method, and the ins-to preference. This means that it is easy to keep track trument can be displayed for the selected determination. of all measurement results. In the «Curve» and «Informa-Easy-to-operate sort, search, and fi lter functions simplify tion» subwindows, the respective measurement curve, data retrieval. calibration curve, and other information on the para- 16 Central data management There is no difference between the viva client-server be viewed and edited further from any PC that has a viva version and local installations in terms of operation and client installed on it, whether in the laboratory or in the range of functions. However, in the client-server-version, offi ce. All measured data is thus available throughout the all of the methods and determinations are saved centrally company. on the viva server. The benefi t of this is that the data can Reprocessing a determination Does the voltammogram show unknown al ready carried out can be recalculated at any time. Retro-peaks? Has the concentration of the active recalibration with a newly measured standard so-standard solutions being used changed? lution is also possible. Of course, the original data is not No problem with viva, as determinations lost and all versions of the determination can be archived. Report generation The report generator offers a full range of options for de-measurement sequence. viva offers a range of different signing the analysis report, whether it be an individual re-report templates that can easily be adapted to meet the port with all relevant sample and method information or respective requirements. This means a customized report a tabular overview report containing all of the results of a can be created very fast. Individual report containing all the relevant specifi cations for Tabulated report (with or without curve) in portrait or landscape format the determination provides a better overview for large measurement series Simple user administrationt 17 Data security and traceability of the results are becoming and data is prevented by password protection. Unneces-ever more important. Access permissions for each user sary program parts can thus be hidden, making operation can be defi ned in viva in accordance with in-house se-even easier. curity guidelines. Unauthorized access to program parts Data security viva also performs data backups. The entire database and all methods are backed up at freely defi ned intervals. Lost data can thus be quickly restored. GLP – Good Laboratory Practice With viva, the regular maintenance intervals of the com-measures (e.g., automatically generated e-mail, stopping plete analysis system, can be monitored automatically the determination). Thanks to this «integrated quality as-and in compliance with GLP. If the defi ned working life surance», expired solutions, unchecked electrodes, or un-is exceeded, this automatically triggers the appropriate serviced dosing units are a thing of the past. Technical specifications 18 884 Professional VA Voltammetric measuring station with integrated potentiostats and galvanostats Dimensions with measuring head and drip pan Width 188 mm Height 322 mm Depth 452 mm Weight without 7.4 kg accessories Potentiostat Sweep potential range ± 5 V Current range ± 224 mA Current measuring ranges 200 pA...224 mA Galvanostat Potential measuring ranges 5 mV...5 V Resolution Applied potential 15 μV Measured potential 150 μV Applied current 0.0031% of current measuring range Measured current 0.0031% of current measuring range Current measured in the smallest current measuring range (200 pA) 6 fA Accuracy Applied current ± (0.2% of current +0.2% of current measuring range) Measured current ± (0.2% of current +0.2% of current measuring range) Applied potential ± (0.2% of potential ± 1 mV) Measured potential ± (0.2% of potential ± 1 mV) Temperature Measuring range (Pt1000) 0...+100 °C measurement Accuracy (Pt1000) ± 0.5 °C Power connection Voltage 100...240 V Frequency 50...60 Hz Power consumption 45 W Requirements PC with Windows operating system with min. 1 USB interface (Version 1.1 or higher) for the PC per connected device. The detailed hardware requirements for the PC and the supported operating systems can be found in the installation instructions for the current viva software version, which is provided digitally on the product pages of the Metrohm webiste. Client/Server Network Min. 10 Mbit/s, stable and permanent communication operation via TCP/IP Ordering Information Manual 19 2.884.0010 884 Professional VA, instrument without measuring head 2.884.0110 884 Professional VA manual for MME 2.884.0210 884 Professional VA manual for RDE/CVS Semiautomatic 2.884.1110 884 Professional VA semiautomated for MME 2.884.1210 884 Professional VA semiautomated for RDE/CVS MVA-22: Fully automated VA system for trace analysis 2.884.1110 884 Professional VA semiautomated for MME 2.919.0130 919 IC Autosampler plus for VA 2.843.0240 843 Membrane Pump Station for Professional CVS systems 6.2441.300 Remote cable 6.1456.210 Measuring vessel for use with sample changer operation MVA-23: Fully automated CVS system for organic additives 2.884.1120 884 Professional VA semiautomated for RDE/CVS 2.858.0110 858 Professional Sample Processor for VA/CVS 2.843.0240 843 Membrane Pump Station for Professional CVS systems 6.2441.300 Remote cable 2.800.0020 800 Dosino (2 ×) 6.5339.500 Equipment with 2 dosing units Measuring heads 6.1256.010 Measuring head for RDE 6.1256.020 Measuring head for MME 6.1256.030 Measuring head for SPE Electrode kits 6.5339.000 CVS electrode equipment with 1 mm platinum electrode for Professional VA/CVS 6.5339.010 CVS electrode equipment with 2 mm platinum electrode for Professional VA/CVS 6.5339.020 CVS electrode equipment with 3 mm platinum electrode for Professional VA/CVS 6.5339.030 VA electrode equipment with Multi-Mode Electrode pro for Professional VA 6.5339.040 VA electrode equipment with glassy carbon RDE for Professional VA 6.5339.050 VA electrode equipment with scTRACE Gold for Professional VA 6.5339.060 CVS electrode equipment with 2 mm platinum electrode for Professional VA/CVS instruments for intensive use 6.5339.070 VA accessory equipment with SPE electrode shaft for professional VA instruments viva Information regarding the current viva software version and available licenses can be found on the product pages of the Metrohm website. www.metrohm.com G, CH-9100 Herisau ohm A witzerland at Metr , printed in S SW Subject to modifications Design Ecknauer+Schoch A 8.884.5001EN – 2020-02