Determination of the Content of Phenolic Compounds and the Changes of Polyphenol Oxidase and Each Index during Browning of Phyllanthus emblica at Different Storage Temperatures

Table 4

Rutin's sample recovery experiment.

Composition	Sampling quantity (g)	Sample content (µg)	Amount of addition (µg)	Measured quantity (µg)	Recovery rate (%)	Average recovery (%)	RSD (%)
Rutin	5.0021	0.8027	0.8040	1.6332	100.16	100.73	4.96
	5.0349	0.7671	0.8126	1.7302	105.94
	4.8830	0.8146	0.8688	1.7240	106.64
	4.9632	0.7770	0.7962	1.7212	102.47
	5.1203	0.8173	0.7877	1.7231	96.37
	3.2361	0.8708	0.8079	1.7244	92.77

RSD means relative standard deviation.