Flow injection analysis (FIA) with amperometric detection is applied to the determination of cocaine. Flow parameters were optimised prior to electrode calibration: a detection potential of +l V vs. Ag/AgCYsat. KC1 and a flow rate of 2.5 ml min-' resulted adequate. A relative standard deviation of 1
Ultra-trace analysis of nitrite in food samples by flow injection with spectrophotometric detection
β Scribed by A. A. Ensafi; G. Bagherian Dehaghei
- Publisher
- Springer
- Year
- 1999
- Tongue
- English
- Weight
- 38 KB
- Volume
- 363
- Category
- Article
- ISSN
- 1618-2650
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π SIMILAR VOLUMES
cGMP) which promotes vascular smooth muscle relax-An automated method for the simultaneous determiation. ## nation of nitrite and nitrate in biological samples by Many investigators have used L-arginine analogs for using a multichannel flow injection analyzer has been competitive inhibition of NO
A flow-injection system is proposed for the rapid determination of trace amounts of formaldehyde based on its inhibition of the Brilliant Green-suiphite reaction at pI1 7. Formaldehyde in the range 40-3000 ng ml-' can be determined at a rate of 35 f 5 samples h -I. The limit of detection was 20 ng m