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Improvement on Determination of Malachite Green in Fishery Products by HPLC with Fluorescence Detector

Xianqing Yang, Sun Man-Yi, Laihao Li, Cen Jianwei, WU Yan-yan, Bo Qi, Shi Hong

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Abstract

In the use of China national standard Determination of malachite green and gentian violet residues in fishery products-high performance liquid chromatography with fluorescence detector(GB/T20361-2006),the problems concerning pretreatment,purification and detection were analyzed. The reduction effect of KBH4 was studied. Centrifugation was adopted for separation instead of separatory funnel in liquid-liquid extraction process. Meanwhile some corresponding operations were simplified. The determination results of tilapia,shrimp and eel by the improved method showed that the recoveries range from 80.7% to 109.8% with the relative standard deviations(RSD) from 0.967% to 9.169%.

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What this paper is about

In the use of China national standard Determination of malachite green and gentian violet residues in fishery products-high performance liquid chromatography with fluorescence detector(GB/T20361-2006),the problems concerning pretreatment,purification and detection were analyzed. The reduction effect of KBH4 was studied. Centrifugation was adopted for separation instead of separatory funnel in liquid-liquid extraction process. Meanwhile some corresponding operations were simplified. The determination results of tilapia,shrimp and eel by the improved method showed that the recoveries range from 80.7% to 109.8% with the relative standard deviations(RSD) from 0.967% to 9.169%.

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Available abstract

In the use of China national standard Determination of malachite green and gentian violet residues in fishery products-high performance liquid chromatography with fluorescence detector(GB/T20361-2006),the problems concerning pretreatment,purification and detection were analyzed. The reduction effect of KBH4 was studied. Centrifugation was adopted for separation instead of separatory funnel in liquid-liquid extraction process. Meanwhile some corresponding operations were simplified. The determination results of tilapia,shrimp and eel by the improved method showed that the recoveries range from 80.7% to 109.8% with the relative standard deviations(RSD) from 0.967% to 9.169%.

Key concepts: Malachite green, Shrimp, Chromatography, High-performance liquid chromatography, Extraction (chemistry), Chemistry, Fish <Actinopterygii>, Fishery

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