International Journal of Analytical Chemistry / 2014 / Article / Tab 3

Research Article

Development of a Gas Chromatography-Mass Spectrometry Method for the Quantification of Glucaric Acid Derivatives in Beverage Substrates

Table 3

Average recovery yields (%) and relative standard deviation (%) at each level of concentration in spiked beverage samples ( at each level, i.e., 2 replicates and 2 injections).

Sample   GLDGuA
   Concentration level1Concentration level1
   12341234

1% recovery99.10109.01101.2499.3894.2085.7290.14103.57
% RSD27.909.120.653.2314.665.443.434.17

2% recovery85.16111.86100.1899.6395.42111.43100.4799.37
% RSD1.993.291.881.5715.104.776.832.44

3% recovery105.6991.5899.18100.1088.8287.96101.5899.90
% RSD23.904.9111.144.806.703.699.133.13

4% recovery96.5898.57101.4999.7997.6094.20100.78100.18
% RSD2.961.151.631.756.641.942.164.02

1 is the lowest and 4 is the highest level of concentration in spiked samples.

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