现代农业科技
現代農業科技
현대농업과기
XIANDAIHUA NONGYE
2012年
8期
35-36
,共2页
微波消解%石墨炉原子吸收%基体改进剂%茶叶%镉
微波消解%石墨爐原子吸收%基體改進劑%茶葉%鎘
미파소해%석묵로원자흡수%기체개진제%다협%력
microwave digestion%graphite furnace atomic absorption spectrometry%matrix modifier%tea%cadmium
采用微波消解系统处理样品,石墨炉原子吸收光谱法测定茶叶中的镉含量。结果表明：该法可以大大减少消化试剂的用量及样品的处理时间,干扰小,准确度高。镉的测定结果相对标准偏差为8.9%～12.5%,检出限为0.002 mg/kg。
採用微波消解繫統處理樣品,石墨爐原子吸收光譜法測定茶葉中的鎘含量。結果錶明：該法可以大大減少消化試劑的用量及樣品的處理時間,榦擾小,準確度高。鎘的測定結果相對標準偏差為8.9%～12.5%,檢齣限為0.002 mg/kg。
채용미파소해계통처리양품,석묵로원자흡수광보법측정다협중적력함량。결과표명：해법가이대대감소소화시제적용량급양품적처리시간,간우소,준학도고。력적측정결과상대표준편차위8.9%～12.5%,검출한위0.002 mg/kg。
Tea samples were treated with microwave digestion system.The results showed that this method cluld greatly reduce magnitude of digestant,and decrease its processing time.Cd in tea was determined by graphite furnace atomic absorption spectrometry.The method was rapid,simple and accuracy.The relative standard deviation of lead was 8.9%~12.5%,and the detection limit was 0.002 mg/kg.
