What are the dangers of VOCs?
What are the sources of VOCs?
What is VOC?
Currently the mainstream ambient air quality monitoring sites are of the following types:
Sample preparation plays a very important role in chemical analysis. Sample pretreatment accounts for 60% of the entire analysis process, and the quality of the pretreatment directly affects the analysis results.
When using atomic absorption spectrophotometer, the choice of element lamp directly affects the analysis efficiency and measurement accuracy. There are two options for element lights: single element lights and multi-element lights. Which element lamp is more advantageous?
The gas chromatograph injection port septum, is one of the key components for introducing the sample into the chromatographic column in the gas chromatograph analysis test. The sampling pad is a consumable accessory in the gas chromatograph analysis system. After a period of use, air leakage or other abnormal phenomena may occur. It is necessary to determine the replacement frequency of the septum according to the performance of the instrument itself and the number of samples to be tested
The chromatographic column is contaminated, the background may increase, and there may be miscellaneous peaks, which may interfere with the determination of the target and contaminate the detector. Once the chromatographic column is contaminated, it needs to be reconditioned according to the aging procedure
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