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Rapid melamine detection method developed,
claims US firm Source of Article: http://www.foodproductiondaily.com/Quality-Safety/Rapid-melamine-detection-method-developed-claims-US-firm 20-Oct-2008
- A rapid method for the detection of melamine in infant
formula and liquid milk meets the requirements of Waters Corporation said its
liquid chromatography combined with tandem quadruple mass spectrometry
(UPLC/MS/MS) method was originally developed in response to requests from Dr Paul Young, senior manager,
Chemical Analysis Operations, Waters Corporation said that the new approach
compares favourably with the Gas Chromatography Mass Spectrometry
(GC/MS) method, employed by many laboratories for detection of melamine, as
well as another conventional analysis tool, high performance liquid
chromatography (HPLC). “The UPLC/MS/MS method
requires no derivatization step and with retention
time of less than two minutes will complete the instrumental analysis inside
four minutes," explained Young. He said, in contrast, a GCMS
based method requires a derivatization reaction
time typically in the range 45 to 120 minutes, followed by an analysis time
of around 20 minutes per sample, while the HPLC based methods need 10 to 15
minutes. He said the UPLC/MS/MS method
can detect melamine contamination as low as 1 μg/Kg
(ppb). “With the introduction of
melamine standards and surveillance programs in many countries worldwide, it
is expected that this technique will have global application impacting
manufacturers, regulators, and most importantly, consumers,” said Young. |
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