https://www.selleckchem.com/
A new method has been developed to determine trace amounts of phosphite (HPO3-2) in environmental samples using ion chromatography with electrospray tandem mass spectrometry (IC-ESI/MS/MS). The method includes the production and use of an 18O-labeled HPO3-2 internal standard (IS). This isotopically labeled IS significantly improved sensitivity and could account for matrix suppression. The method detection limit (MDL) was determined as 0.017 and 0.034 μg L-1 of HPO3-2 (6.5 and 13 ng P L-1) using a 500 and 25 μL injection loop, respectively. Precision (1-10%)
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