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Contacts:
Russia, 190020
Saint Petersburg,
Nab. Obvodnogo canala, 150
"Himanalyt", NTF "Volta"
phone +7 (812) 786-72-89
phone (fax) +7 (812) 786-65-89
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 OUR PRODUCTS Voltammetric analyzer or polarograph AVS 1.1 |
Voltammetric analyzer or polarograph AVS-1.1
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Polarograph AVS-1.1 designed for the voltammetric analysis of heavy metals in drinking, natural and waste waters, food, raw materials, metals and alloys, in biological and other materials.
Certificate of Committee of the Russian Federation for Standardization N 7936 |
Determination of mass concentration of Cu, Pb, Cd, Zn, Bi, Ni, Ag, I, As, Fe, Sb in different samples:
- Drinking, natural, waste and sea waters
- Soil, subsoil, sediments
- Food, food staples
- Working air, industrial emissions
- Cosmetics
- Pharmaceuticals
- Alcohol and soft drinks
- Biological liquids
- Feed-stuff
- Mineral fertilizers
- Child's production
- Iron and nonferrous metal industry
Advantages of the voltammetric analysis:
- High absolute sensitivity
- Low cost of singular analysis
- Multielement determination in one sample
- Express analysis
- Safety for the operator
- Excluding work with the metallic mercury (determination on the solid electrodes)
Polarograph AVS-1.1 is a relatively inexpensive alternative for the spectroscopical devices and competes successfully with these devices in the practice of the determination of heavy metals.
The main application fields are:
- Sanitary control
- Certification of food and food commodities
- Ecological monitoring of environment
- Veterinary control
- Quality control of cosmetics and pharmaceuticals
- Quality control of products
- Control of working zone
- Technological control
- Study of geological features
Technical Characteristics
Micro-processor polarograph AVS-1.1 provides all kinds of voltammetric measurements with the solid electrodes.
AVS-1.1 operates with three electrode electrochemical cell, conversion to two electrode electrochemical cell is possible with external commutation of electrodes.
The main mode of AVS-1.1 is alternating current square-wave stripping voltammetry.
Instruments range:
Mean square deviation of random component of error in the range 1-10 mkg/l ± 20 %
10-100 mkg/l ± 15%
Systematic component of error in the range of 1-10 mkg/l ± 20 %
10-100 mkg/l ± 15%
Main characteristic of potential sweep:
- Linear scan replaced to step scanning with the amplitude of the step 1 mV
- Applied potential resolution ± 10 mV
- Scan rate 1-200 mV with step 1
- Range of reference voltages -2,5/+ 2,5 V
- Accuracy of scanning rate ± 10 %
- Square-wave sweep modulation
- Amplitude 0 – 100 mV
- Resolution amplitude accuracy 1mV
- Accuracy of impulse amplitude setting out ± 10 %
- Environmental stability: temperature (work temperature range +100C to + 350C), humidity according with the group B1 GOST 12997-84
Atmospheric pressure according with the group P1 GOST 12997-84
Mechanical attack according with the group L3 GOST 12997-84
Detection limit without sample concentration, mg/dm3:
| Cd, Pb, Hg |
0.1 |
| Cu, Bi |
0.3 |
| Zn |
5 |
| Ni |
10 |
Operating conditions:
- Operating temperature + 100C to + 350C
- Operating humidity up to 80 %
- Atmospheric pressure 630 to 800 mm of mercury column
- Power 220 V, 50 Hz
- Device should be set on a table without vibration
AVS-1.1 consists of polarograph AVS-1.1 and personal computer (type IBM PC with the processor up to 486). Device connect with the computer using communication port COM1 - COM4 (choose the communication port in program settings). Polarograph AVS-1.1 is fully computer-operated instrument provided with extended special software. The windows type program is easy to operate. It allows automatic evaluation of results, to store data to the PC, curves and tables can be viewed on the screen and exported to other programs.
Other characteristics:
- Setting time of working mode not more 15 min
- Continuous operating time 8 hours
- Weight 6,5 kg
- Dimensions 450*300*270 mm
- Power 220V, 50 Hz
- Power consumption not more 20 Wt
- Average lifetime up to 5 years
- Probability of no failure after 1000 hours of working up to 0,8
- Polarograph AVS-1.1 should be transported in special transportation container of manufacturer
- Climatic impact during transportation should comply with GOST 22261-94 for the devices of group 2, correspond to storage conditions according to GOST 15150-69 group 5
- Polarograph should be stored under normal operating conditions during 24 hours after transportation under freezing temperatures
- There must be no vaporous of acids, alkalis, oils, paints, gasoline and other agents which can affect to the work of the polarograph
- The following measuring techniques are available: direct current linear sweep voltammetry (LSV), differential impulse voltammetry (DIV). LSV and DIV techniques can be used for direct as well as for stripping voltammetry. The instrument provides the option of work with three electrode electrochemical cell, in particularly, with integrated cell "Module EM-04" with rotating disk electrodes which made of glassy carbon and gold.
Polarograph AVS 1.1 includes:
- Microprocessor unit with the integrated cell "Module EM-04"
- 2 solid (glass-carbon) electrodes
- Reference electrode
- Glass-carbon cell
- Cable for the connection to the computer
- Power cable
- Passport
- Method of periodic verification
- Certificate about periodic verification
- Instruction manuals
Our specialists will provide you technical assistance during the guarantee and post-guarantee period of service.
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