采用碳酸钠—氧化锌混合试剂对植物样品进行高温半熔处理后,利用分光光度计测定植物样品中氯元素含量。试验结果显示,方法对大于10μg/g含氯元素的植物样品检测灵敏度、准确度和精确度高,但是受温度和时间的影响较大。方法测定结果准确,满足分析要求。 After the plant samples were treated with sodium carbonate - zinc oxide mixed reagent at high temperature and half melting, the content of chlorine in the plant samples was determined by spectrophotometer. The test results showed that the method has higher sensitivity, accuracy and precision for plant samples containing more than 10 μg / g chlorine, but it is greatly affected by temperature and time. The method is accurate and meets the analytical requirements.