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- W2354936591 abstract "A high performance liquid chromatographic(HPLC) method was developed for the determination of N,N-bis(2-hydroxyethyl)-p-phenylenediamine sulfate(DHPD),N,N-dimethyl-p-phenylenediamine sulfate(DMPD),N,N-diethyl-p-phenylenediamine sulfate(DEPD)and N-phenyl-p-phenylenediamine HCl(PPD).Dyes were separated on an Eclipse XDB-C18 silica column(150 mm×4.6 mm,5 μm,Agilent) using acetonitrile-25 mmol/L phosphate buffer(pH=6.0,containing 0.1% 1-heptanesulfonic acid sodium salt) as mobile phase by gradient elution at a flow rate of 1.0 mL/min and a column temperature of 25 ℃.The detection wavelengths were set at 250 nm and 280 nm.Under the optimal conditions,the linear ranges of target componds ranged from 0.1 mg/L to 400 mg/L,with correlation coefficients of 0.999 2-0.999 9.The detection limits were in the range of 18-108 mg·kg-1 and the quantitation limits were in the range of 42-320 mg·kg-1.The spiked recoveries ranged from 83% to 115% with RSDs less than 10%.The method is simple,rapid and accurate,and is applicable to the analysis of various hair dyes." @default.
- W2354936591 created "2016-06-24" @default.
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- W2354936591 date "2013-01-01" @default.
- W2354936591 modified "2023-09-23" @default.
- W2354936591 title "Analysis of Four N-Substituted Derivatives of p-Phenylenediamine in Hair Dyes by High Performance Liquid Chromatography" @default.
- W2354936591 hasPublicationYear "2013" @default.
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