BF-131S type total phosphorus analyzer
Detection principle:
Add persulfate to the sample to convert all phosphorus in the solution into orthophosphate. The orthophosphate in the sample reacts with ammonium molybdate in an acidic medium in the presence of antimony salt to form phosphomolybdic acid, which is immediately reduced by ascorbic acid to form a blue complex. Measure the absorbance at 700nm. After calculation by the microcomputer chip, the total phosphorus content (mg/L) is directly displayed.
Scope of application:
It can be widely used in colleges and universities, research institutes, sewage treatment plants, environmental monitoring stations, electroplating, petrochemicals, papermaking, pharmaceuticals, printing and dyeing, textiles, leather, brewing, dairy industry, electronics, municipal engineering and other industries.
Instrument appearance:
Figure 1 Water Quality Tester
Figure 2 16 well digestion apparatus
Measuring Item |
total phosphorus |
Measurement range |
0-20mg/L |
accuracy |
±5% |
detection limit |
0.02 mg/L |
Optical stability |
≤ 0.005A/20 minutes |
Measurement time |
50 minutes, 16 samples per batch |
Temperature indication error |
±1℃ |
Temperature uniformity |
±1℃ |
Light source lifespan |
100000 hours |
Number of curves |
Standard 2 with 78 extensions |
storing data |
1800 pieces |
display |
LCD display screen |
Display interface |
All in Chinese |
Colorimetric method |
Colorimetric tube |
ambient temperature |
5-40℃ |
ambient humidity |
Relative humidity ≤ 85% |
rated voltage |
AC220V±10%/50Hz |
rated power |
10W |
Technical parameters:
Product features:
1. Using the EPA approved method in the United States, in accordance with HJ/T399-2007, the measurement is accurate and effective.
2. Adopting imported high brightness and long-life cold light source, with excellent optical performance and a light source lifespan of up to 100000 hours.
3. Large LCD screen with full Chinese display, direct data reading, simple and time-saving operation.
4. Integrated digestion and colorimetric analysis, no need to replace the tube, simple and fast measurement, and no safety hazards.
5. It can save 80 standard curves and 1800 measured values (date, time, parameters, test data).
6. Memory standard working curve, users can also calibrate the curve as needed.
7. One click factory reset, which can quickly recover in case of curve loss caused by misoperation.
8. It has data storage function and power-off protection function, making it convenient to query historical data and prevent data loss.
9. The digestion instrument adopts intelligent PID temperature control technology and a dual anti overheating protection system, ensuring safe and uniform heating with fast speed. Used for the digestion of COD, total phosphorus, total nitrogen and other projects.
Standard configuration:
One set of mainframe, one set of 16 well digestion analyzer, one set of colorimetric tube, one set of total phosphorus reagent, one colorimetric rack, and so on.