scholarly journals ETHYNOLOGS OF TRIPHENYLMETHANE DYES. SYNTHESES AND PROPERTIES OF ACETYLENIC ANALOGS OF MALACHITE GREEN, CRYSTAL VIOLET, AND THEIR RELATED COMPOUNDS

1981 ◽  
Vol 10 (3) ◽  
pp. 311-314 ◽  
Author(s):  
Shuzo Akiyama ◽  
Keiko Yoshida ◽  
Misuzu Hayashida ◽  
Kenichiro Nakashima ◽  
Shin’ichi Nakatsuji ◽  
...  
Keyword(s):  
Malachite Green ◽  
Crystal Violet ◽  
Triphenylmethane Dyes ◽  
Green Crystal ◽  
Related Compounds

Determination of Residues of Three Triphenylmethane Dyes and Their Metabolites (Malachite Green, Leuco Malachite Green, Crystal Violet, Leuco Crystal Violet, and Brilliant Green) in Aquaculture Products by LC/MS/MS: First Action 2012.25

2013 ◽  
Vol 96 (5) ◽  
pp. 1152-1157 ◽  
Author(s):  
Dominique Hurtaud-Pessel ◽  
Pierrick Couëdor ◽  
Eric Verdon ◽  
Dawn Dowell
Keyword(s):  
Malachite Green ◽  
Crystal Violet ◽  
Brilliant Green ◽  
Triphenylmethane Dyes ◽  
Method Performance ◽  
Green Crystal ◽  
Leuco Crystal Violet ◽  
Aquaculture Products ◽  
Leuco Malachite Green

Abstract During the AOAC Annual Meeting held from September 30 to October 3, 2012 in Las Vegas, NV, the Expert Review Panel (ERP) on Veterinary Drug Residues reviewed data for the method for determination of residues of three triphenylmethane dyes and their metabolites (malachite green, leuco malachite green, crystal violet, leuco crystal violet, and brilliant green) in aquaculture products by LC/MS/MS, previously published in the Journal of Chromatography A 1218, 1632–1645 (2006). The method data were reviewed and compared to the standard method performance requirements (SMPRs) found in SMPR 2009.001, published in AOAC's Official Methods of Analysis, 19th Ed. (2012). The ERP determined that the data were acceptable, and the method was approved AOAC Official First Action. The method uses acetonitrile to isolate the analyte from the matrix. Then determination is conducted by LC/MS/MS with positive electrospray ionization. Accuracy ranged from 100.1 to 109.8% for samples fortified at levels of 0.5, 0.75, 1.0, and 2.0 μg/kg. Precision ranged from 2.0 to 10.3% RSD for the intraday samples and 1.9 to 10.6% for the interday samples analyzed over 3 days. The described method is designed to accurately operate in the analytical range from 0.5 to 2 μg/kg, where the minimum required performance limit for laboratories has been fixed in the European Union at 2.0 μg/kg for these banned substances and their metabolites. Upper levels of concentrations (1–100 μg/kg) can be analyzed depending on the different optional calibrations used.

scholarly journals ON THE PERIODS OF TRIPHENYLMETHANE DYES REMOVAL AFTER FISH PROCESSING

Fisheries ◽  
2020 ◽  
Vol 2020 (3) ◽  
pp. 94-100
Author(s):  
Antonina Vishtorskaya ◽  
Natalya Romanova ◽  
Pavel Golovin
Keyword(s):  
Rainbow Trout ◽  
Malachite Green ◽  
Crystal Violet ◽  
First Year ◽  
Fish Processing ◽  
Fish Farms ◽  
Triphenylmethane Dyes ◽  
Fish Products ◽  
Residual Amount ◽  
Dyes Removal

In the article, the period of triphenylmethane dyes (for example, malachite green and crystal violet) removal from the fish’s tissues after treatment is examined. In the Russian Federation, their use in aquaculture was discontinued. No alternative replacement for these drugs was found which led to a worsening of the epizootic situation in fish farms. The established terms for malachite green excretion for rainbow trout are 282 days (10 months), for purple "K" during summer carp breeding - 40 days (1.5 months). The use of these dyes during incubation period and in the first year of fish rearing in compliance with these terms will allow one to get fish products without a residual amount of triphenylmethane dyes.

Determination of malachite green, crystal violet and their leuco-metabolites in fish by HPLC–VIS detection after immunoaffinity column clean-up

2013 ◽  
Vol 913-914 ◽  
pp. 123-128 ◽  
Author(s):  
Jie Xie ◽  
Tao Peng ◽  
Dong-Dong Chen ◽  
Qing-Jie Zhang ◽  
Guo-Min Wang ◽  
...  
Keyword(s):  
Malachite Green ◽  
Crystal Violet ◽  
Immunoaffinity Column ◽  
Green Crystal

Photovoltaic and rectification properties of SnO2/malachite green + crystal violet dye/copper system

1984 ◽  
Vol 3 (3) ◽  
pp. 271-274 ◽  
Author(s):  
G. D. Sharma ◽  
A. K. Tripathi ◽  
S. C. Mathur ◽  
D. C. Dube
Keyword(s):  
Malachite Green ◽  
Crystal Violet ◽  
Green Crystal ◽  
Crystal Violet Dye

Coupling liquid-phase microextraction with paper spray for rapid analysis of malachite green, crystal violet and their metabolites in complex samples using mass spectrometry

2016 ◽  
Vol 8 (36) ◽  
pp. 6651-6656 ◽  
Author(s):  
Ling Fang ◽  
Jiewei Deng ◽  
Yuan Yu ◽  
Yunyun Yang ◽  
Xiaowei Wang ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Liquid Phase ◽  
Malachite Green ◽  
Crystal Violet ◽  
Rapid Analysis ◽  
Liquid Phase Microextraction ◽  
Paper Spray ◽  
Complex Samples ◽  
Green Crystal

Coupling liquid-phase microextraction (LPME) with paper spray mass spectrometry (PS-MS) to analyze malachite green, crystal violet and their metabolites.

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