Simultaneous determination of various aseptics and sweeteners in milk and dairy products

2010 ◽  
Vol 28 (3) ◽  
pp. 323-326
Author(s):  
Ge SONG ◽  
Jindou JIANG ◽  
Qiumei ZHANG
Keyword(s):  
Simultaneous Determination ◽  
Dairy Products ◽  
Milk And Dairy Products

scholarly journals Simultaneous determination of some steroid hormones in milk and dairy products by liquid chromatography tandem mass spectrometry (LC-MS/MS)

2019 ◽  
Vol 2 (2) ◽  
pp. 8-15
Author(s):  
Tu Vu Ngoc ◽  
Thu Hang Do Thi ◽  
Chi Le Dinh ◽  
Mai Dau Chi ◽  
Hien Dang Thi ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Tandem Mass Spectrometry ◽  
Simultaneous Determination ◽  
Steroid Hormones ◽  
Dairy Products ◽  
Ion Source ◽  
Tandem Mass ◽  
Tandem Mass Spectrometric ◽  
Milk And Dairy Products

A sensitive method has been developed and validated for simultaneous determination of some steroid hormones (trenbolone, 17β-estradiol, progesterone, testosterone, estrone, melengestrol acetate and zeranol). Samples were hydrolyzed to release analytes, and analytes were then extracted from sample matrix using QuEChERS technique, detected and quantified by using reversed phase liquid chromatography coupled with tandem mass spectrometry. The tandem mass spectrometric detection was done by using ESI ion source working in positive mode and multiple reaction monitoring (MRM) quantitation. Validation results show that the method is sensitive and selective for analyzing seven steroid hormones on milk and dairy products. The quantitation limit of the method for these analytes ranged from 0.1 to 2.0 µg/kg. Method recovery was from 70.4 to 110.0 %. Relative coefficient of variation varied from 2.7 to 12%. The method was applied to determine steroid hormones in 40 milk and dairy product samples collected from different markets and commercial centers in Hanoi.  

scholarly journals Study of Simultaneous Determination of Residual Veterinary Drugs Including Tetracyclines Antibiotics in Milk and Dairy Products

2009 ◽  
Vol 50 (5) ◽  
pp. 216-222 ◽  
Author(s):  
Emiko YOSHIDA ◽  
Takahiro SHIBUYA ◽  
Chieko KUROKAWA ◽  
Yutaka INOUE ◽  
Yoshihiko YAMAMOTO ◽  
...  
Keyword(s):  
Simultaneous Determination ◽  
Dairy Products ◽  
Veterinary Drugs ◽  
Milk And Dairy Products

Determination of Bisphenol A in Milk and Dairy Products by High-Performance Liquid Chromatography with Fluorescence Detection

2003 ◽  
Vol 66 (8) ◽  
pp. 1439-1443 ◽  
Author(s):  
JEONG-HUN KANG ◽  
FUSAO KONDO
Keyword(s):  
Bisphenol A ◽  
Dairy Products ◽  
High Performance ◽  
Solid Phase ◽  
Skim Milk ◽  
The European Union ◽  
Condensed Milk ◽  
Oasis Hlb ◽  
Milk And Dairy Products

This study was conducted to develop a selective and sensitive method for the determination of bisphenol A (BPA) levels in milk and dairy products. A method based on solvent extraction with acetonitrile and solid-phase extraction (SPE) was developed for the analysis of BPA in milk, yogurt, cream, butter, pudding, condensed milk, and flavored milk, and a method using two SPE cartridges (OASIS HLB and Florisil cartridge) for skim milk was also developed. The developed methods showed good recovery levels (77 to 102%) together with low detection limits (1 μg/liter for milk, yogurt, pudding, condensed milk, flavored milk, and skim milk and 3 μg/liter for cream and butter). These methods are simple, sensitive, and suitable for the analysis of BPA in milk and dairy products. When 40 milk and dairy products were analyzed by the proposed methods, BPA was not identified in noncanned products, but its levels ranged from 21 to 43 μg/kg in canned products, levels that were 60- to 140-fold lower than the migration limits in the European Union and Japan.

Kinetic Determination of Total Casein in Milk and Dairy Products by Long-Wavelength Fluorescence Detection

1998 ◽  
Vol 46 (10) ◽  
pp. 4250-4254 ◽  
Author(s):  
María Paz Aguilar-Caballos ◽  
Agustina Gómez-Hens ◽  
Dolores Pérez-Bendito
Keyword(s):  
Fluorescence Detection ◽  
Dairy Products ◽  
Kinetic Determination ◽  
Long Wavelength ◽  
Milk And Dairy Products

Improved Liquid Chromatographic Determination of Riboflavin in Milk and Dairy Products

1985 ◽  
Vol 68 (4) ◽  
pp. 693-696 ◽  
Author(s):  
Samy H Ashoor ◽  
Michael J Knox ◽  
Jacquelyn R Olsen, ◽  
Dru Ann Deger
Keyword(s):  
Dairy Products ◽  
Chromatographic Determination ◽  
Simple Liquid ◽  
Uv Detector ◽  
Aoac Method ◽  
Total Analysis ◽  
Liquid Chromatographic Determination ◽  
Liquid Chromatographic ◽  
Milk And Dairy Products

Abstract Reported here is a simple liquid chromatographic (LC) method for the i determination of riboflavin in milk (liquid, evaporated, and dry), yogurt, ' and cheese. The method involves passing liquid samples or filtrates of semisolid and solid samples through a Clg cartridge. Retained riboflavin is then eluted with an aliquot of 50% methanol in 0.02M acetate buffer of pH 4. A volume of the eluate is injected into the LC system | consisting of a CJ8 column, a solvent of water-methanol-acetic acid (65 + 35 + 0.1, v/v) with a flow rate of 1 mL/min, and a UV detector set at 270 nm. The method is precise and accurate and compares i favorably with the present AOAC method. Moreover, it involves fewer sample preparation steps and has a total analysis time of less than 1 h.

Bimodal porous silica nanomaterials as sorbents for an efficient and inexpensive determination of aflatoxin M1 in milk and dairy products

2020 ◽  
Vol 333 ◽  
pp. 127421 ◽  
Author(s):  
Enric Pellicer-Castell ◽  
Carolina Belenguer-Sapiña ◽  
Pedro Amorós ◽  
José Manuel Herrero-Martínez ◽  
Adela R. Mauri-Aucejo
Keyword(s):  
Dairy Products ◽  
Porous Silica ◽  
Aflatoxin M1 ◽  
Silica Nanomaterials ◽  
Milk And Dairy Products
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