𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Determination of methylene blue residues in aquatic products by liquid chromatography-tandem mass spectrometry

✍ Scribed by Jin-Zhong Xu; Lin Dai; Bin Wu; Tao Ding; Jun-Jie Zhu; Hong Lin; Hui-Lan Chen; Chong-Yu Shen; Yuan Jiang

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
214 KB
Volume
32
Category
Article
ISSN
1615-9306

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

A method for the determination and confirmation of methylene blue (MB) in aquatic products was developed. Residues of MB were extracted from homogenized tissues with acetonitrile/sodium acetate buffer solution, and simply cleaned up with dichloromethane liquid/liquid extraction. After concentration and dissolution, the sample solutions were cleaned up by the neutral alumina and weak cation‐exchange solid phase extraction (SPE) cartridge, prior to LC‐MS/MS analysis. MB was determined at 1.0–20 μg/kg in eel, toasted eel and shrimp, with a limit of quantification of 0.5 μg/kg. Recovery for MB was between 73.0% and 108.3%. This method is fast, exact and sensitive. It can be applied to determine MB in aquatic products.

📜 SIMILAR VOLUMES

Sulfamethazine, Sulfothiazole and Albend
Sulfamethazine, Sulfothiazole and Albendazole Residue Dosage in Food Products Determined by Liquid Chromatography/Tandem Mass Spectrometry
✍ Bruno Casetta; Roberto Cozzani; Anna Lucia Cinquina; Silvano di Marzio 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 463 KB

There is a growing demand for analytical techniques for the detection of a wide variety of residues from synthetic molecules in matrices such as soil, water, air and food. These techniques have to meet the requirements of speed and sensitivity as well as the ability to handle any matrix with minimal

Determination of Furosine in Hair by Liq
Determination of Furosine in Hair by Liquid Chromatography–Tandem Mass Spectrometry
✍ Akira Takemura; Shigeki Muramatsu; Nobuhiro Kobayashi; Akihiko Nakagawa; Eiichi 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 153 KB 👁 3 views

A sensitive and reliable analytical method for determining furosine in hair has been developed using liquid chromatography-tandem mass spectrometry. Fructose-N"-fomyl-d,-DL-lysine was synthesized and used as an internal standard. By the present method, glycated lysine levels in hair could be determi

Determination of marker residue of Olaqu
Determination of marker residue of Olaquindox in fish tissue by ultra performance liquid chromatography–tandem mass spectrometry
✍ Xiaojun Zhang; Bin Zheng; Hong Zhang; Xuechang Chen; Guangming Mei 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 252 KB

## Abstract Methyl‐3‐quinoxaline‐2‐carboxylic acid (MQCA) is the last major remaining detectable metabolite of Olaquindox in animal tissue. A rapid, sensitive and specific ultra performance liquid chromatography–tandem mass spectrometry (UPLC–MS/MS) method was developed for the detection and quanti

Determination of sialic acids in infant
Determination of sialic acids in infant formula by liquid chromatography tandem mass spectrometry
✍ L. K. Sørensen 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 342 KB 👁 2 views

## Abstract A liquid chromatographic/tandem mass spectrometric method using pneumatically assisted electrospray ionization (LC‐ESI‐MS/MS) was developed for determination of __N‐__acetylneuramic acid and __N‐__glycolylneuramic acid in infant formula. Reconstituted samples were hydrolysed in dilute s