When using a nitrite detector, you need to pay attention to the following:
The collection point and collection time should be determined before collection to avoid external interference, and the sample should be processed immediately after collection, and try not to store it for a long time.
The processing process of the sample should be carried out in strict accordance with the requirements of the method, pay attention to quality control, and avoid errors.
When using nitrite detectors, it is necessary to pay attention to operation methods and maintenance to ensure the accuracy and reliability of measurement results. Specifically, the following points are included:
Calibrate the instrument regularly to ensure the accuracy of the measurement results.
Keep the instrument clean and avoid contamination.
Pay attention to the environment in which the instrument is used, and avoid using it in harsh environments such as high temperature and high humidity.
Follow the instructions for use of the instrument and do not change the settings or disassemble the instrument at will.
Testing laboratories should be kept clean and tidy to avoid dust and other contaminants entering samples and instruments and affecting measurement results.
Attention is also needed to note the use of cuvettes:
The outside and inside of the cuvette need to be cleaned before first use.
Wait for the cuvette to be placed in the instrument and the lid is closed.
When the calibration is finished, pour out the pure water in the cuvette and wipe it clean.
If it is a handheld water quality tester, select the corresponding range and add an appropriate amount of pure water for testing.
After completing the test, clean up the site in time and make relevant records.
The above information is for reference only, you can refer to the instruction manual of the nitrite detector for more accurate information.