Medicament consumption monitoring system based on sewage medicament concentration information
A drug concentration and monitoring system technology, applied in the direction of drugs or prescriptions, test water, material inspection products, etc., can solve problems such as lack
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[0024] Taking amphetamine-like substances as an example, first choose to collect samples in multiple sewage plants. At this time, the collection unit uses an equal-proportion wastewater sampler to collect 24h mixed samples. The automatic sampler can be used for timing and quantitative sampling, equal flow rate, time equal rate, isochronous and equal flow rate, and isochronous liquid level proportional sampling.
[0025] Stability treatment: In general, the samples need to be refrigerated at low temperature and placed in a freezer at -20°C. To prevent biodegradation, a certain amount of hydrochloric acid needs to be added to adjust the pH, so that the amphetamines to be tested can stably exist in the sewage samples.
[0026] Sample purification: Measure 500mL of the sample and pass the sample through a filter membrane with a pore size of 0.45μm to remove large suspended particles.
[0027] Sample separation: the solid phase extraction process includes activation of SPE cartrid...
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