不同的国家、不同的地区，甚至不同的土壤类型，都有不同测定方法。
Different country or region, even different soil type use different method.
并用紫外分光光度计测定了该四种类型杜仲中绿原酸类物质的总含量。
It was found that the contents of Chlorogenic acid were very different.
并用紫外分光光度计测定了该四种类型杜仲中绿原酸类物质的总含量。
It was found that the contents of Chlorogenic acid were very different.
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