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result sql = A new automated approach to determine monosodium glutamate in dehydrated broths by using the flow-batch methodology.
A new automated approach to determine monosodium glutamate in dehydrated broths by using the flow-batch methodology.
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result sql = The advantages of the flow-batch methodology were exploited to implement a simple system with nephelometric detection for the determination of monosodium glutamate (MSG) in food samples. The method is based on the inhibitory effect of the MSG over the crystallization of L-lysine in an isopropanol/acetone mixture. The calibration curve was prepared on-line. The method was linear over the range of 2.8 x 10(-3) to 1.1 x 10(-2)gL(-1) and a detection limit of 9.7 x 10(-5)gL(-1) was achieved. It was successfully applied to determine the MSG concentration in food samples, without a previous treatment. A recovery study was carried out on real samples and the percentages were between 98 and 106%.

Publication: Talanta 2010 Apr 15 ;81(1-2)::116-9. :doi: 10.1016/j.talanta.2009.11.045.
Publication Date: 2010 Apr 15
Study Author(s): Acebal, Carolina C;Insausti, Matías;Pistonesi, Marcelo F;Lista, Adriana G;Band, Beatriz S Fernández;
Institution: FIA Laboratory, Analytical Chemistry Section, INQUISUR (UNS-CONICET), Av. Alem 1253, B8000CPB Bahía Blanca, Buenos Aires, Argentina.
Shortcut link to this study:
The advantages of the flow-batch methodology were exploited to implement a simple system with nephelometric detection for the determination of monosodium glutamate (MSG) in food samples. The method is based on the inhibitory effect of the MSG over the crystallization of L-lysine in an isopropanol/acetone mixture. The calibration curve was prepared on-line. The method was linear over the range of 2.8 x 10(-3) to 1.1 x 10(-2)gL(-1) and a detection limit of 9.7 x 10(-5)gL(-1) was achieved. It was successfully applied to determine the MSG concentration in food samples, without a previous treatment. A recovery study was carried out on real samples and the percentages were between 98 and 106%.
PMID: 20188896

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