《Table 2 Recovery rates and RSDs of amino acids from spiked fresh tea leaves》

《Table 2 Recovery rates and RSDs of amino acids from spiked fresh tea leaves》   提示:宽带有限、当前游客访问压缩模式
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《Determination of 18 Kinds of Amino Acids in Fresh Tea Leaves by HPLC Coupled with Pre-column Derivatization》


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Precisely weighed 5 pieces of 0.25 g of fresh tea leaf samples with known amino acid content,added certain volume of amino acid mixed standard solution,made the measurement after derivatization reaction,and determined the content using the external standard method,calculated the recovery rate of amino acid and relative standard deviation(Table 2).