Instrument working principle:
The working principle of XJB-II nitrobenzene analyzer is electrochemical analysis technology. This method involves applying a voltage to the working electrode to induce a reduction reaction of nitrobenzene, resulting in a current peak at a specific potential. The instrument measures the current value of the peak while recording its potential, and the data is processed by software. Within a certain concentration range, the amount of nitrobenzene content is directly proportional to the current value of its characteristic current peak; Therefore, the content of nitrobenzene in the sample can be determined by comparing the current peak of the sample with the peak current of a single standard substance or a series of standard substances under the same conditions using software, thus achieving rapid and accurate detection of nitrobenzene content in chemicals such as aniline or wastewater.
This instrument adopts a database design, which saves the test results in the database, allowing users to query and retrieve the results at any time, and can print the test report, ultimately forming a standardized test report.

Main technical indicators:
★ Accuracy: Relative error (RE) not greater than ± 10% (based on 1 mg/L nitrobenzene)
★ Repeatability: Relative standard deviation not exceeding 5%
★ Detection limit: 0.1 mg/L (100 µ g/L)
★ Power requirement: AC 220V AC power supply

Main features of the instrument:
★ Adopting the principle of electrochemical measurement, the detection cost is very low.
★ Adopting a green and environmentally friendly rapid mixing agent, simply mix the mixture with the sample to be tested and it can be tested on the machine. The operation is simple and the detection is fast. One analysis only takes about 30 seconds.
The detection process does not require high-purity gas deoxygenation.
★ High detection sensitivity, with a detection limit of up to 0.1 mg/L.
The measurement results are accurate, with good repeatability, and have good correlation with analytical methods such as gas chromatography, liquid chromatography, and spectrophotometry.
★ Can replace complex and expensive chromatographic and photometric methods.

Application areas:
1) Production enterprises
Widely used in the production and application of chemicals such as aniline, quality control operations on production lines, and final product testing in enterprises.
2) Environmental protection field
Widely used for the detection of nitrobenzene content in wastewater from aniline production enterprises, pharmaceutical enterprises, and dye factories.
3) Food and Security Department
Detection of nitrobenzene in foods such as milk, eggs, fish, poultry, and livestock.
4) Other fields
It can be used for the detection of nitrobenzene content in soil, plants, etc., providing theoretical basis for agricultural production and environmental protection departments to control soil pollution.