Method for determining hydrazine hydrate through derived HPLC (High Performance Liquid Chromatography)
A hydrazine hydrate and derivatization technology, applied in measuring devices, instruments, scientific instruments, etc., can solve the problems of restricted popularization, high price, high requirements for columns, etc., and achieves good linear relationship, good specificity, no The effect of matrix interference
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[0022] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings.
[0023] 1.1. Instruments
[0024] Shimadzu LC-20AD liquid chromatograph (including online vacuum degasser, binary gradient pump, autosampler, column oven, UV detector and Labsolution chromatography workstation) Sartorius BT125D electronic balance (Beijing Sartorius Co., Ltd.) .
[0025] 1.2. Reagents
[0026] Glacial acetic acid (99.5%), hydrazine hydrate (98%), 2-hydroxy-1-naphthaldehyde (98%), dimethylsulfoxide (99%), purified water, acetonitrile (TEDIA, chromatographically pure), trifluoroacetic acid (chromatographically pure).
[0027] 1.3. Solution preparation
[0028] 2-Hydroxy-1-naphthaldehyde (hereinafter referred to as HNA): Take 250 mg of the reagent, weigh it accurately, place it in a 50 mL volumetric flask, dilute to the mark with dimethyl sulfoxide, dissolve and shake well.
[0029] Hydrazine hydrate: Weigh 10 mg of the reagen...
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