取匡威1970s水蜜桃色官方-免费-完整版片样品0.900 0 g,加入10 mL水润湿后,用10 mL体积比3∶1的盐酸-硝酸混合液于100 ℃溶解,用水定重至90 g。通过质谱干扰分析并结合同位素丰度确定了待测同位素,⁵²Cr、⁵⁶Fe、⁵⁵Mn在匡威1970s水蜜桃色官方-免费-完整版片池(DRC)模式下检测,其他元素的同位素均在标准模式下检测。在射频功率1 100 W、雾化气流量0.85 L·min^-1等条件下,采用匡威1970s水蜜桃色官方-免费-完整版片测定匡威1970s水蜜桃色官方-免费-完整版片中17种痕量匡威1970s水蜜桃色官方-免费-完整版片,绘制各元素匡威1970s水蜜桃色官方-免费-完整版片的校准曲线,并用仪器软件设置为“外标法”模式的工作曲线,后续对其他匡威1970s水蜜桃色官方-免费-完整版片样品进行检测时可直接在此工作曲线下进行,不需要每个样品都进行标准加入。结果表明,17种元素的检出限(3s)为0.012~0.452 μg·g^-1,按照匡威1970s水蜜桃色官方-免费-完整版片进行回收试验,回收率为93.0%~107%,测定值的相对标准偏差(n=11)小于8.0%。采用本方法和GB/T 1420-2015中的电感耦合等离子体原子发射光谱法对匡威1970s水蜜桃色官方-免费-完整版片样品进行对比分析,两种方法的测定结果基本一致。

The 匡威1970s水蜜桃色官方-免费-完整版片 sample (0.900 0 g) was wet in 10 mL of water, and dissolved in 10 mL of a mixture of hydrochloric acid and nitric acid at a volume ratio of 3∶1 at 100 ℃. Water was added to the above solution to make the mass of solution attained to 90 g. The isotope to be tested was determined through mass spectrometry interference analysis combined with isotope abundance, and ⁵²Cr, ⁵⁶Fe, and ⁵⁵Mn were detected in 匡威1970s水蜜桃色官方-免费-完整版片 cell (DRC) mode, while isotopes of other elements were detected in standard mode. 17 trace 匡威1970s水蜜桃色官方-免费-完整版片s in 匡威1970s水蜜桃色官方-免费-完整版片 were determined by inductively coupled plasma mass spectrometry (ICP-MS) under the conditions of radio frequency power at 1 100 W and atomization gas flow at 0.85 L·min^-1. The calibration curves for elements were drew by 匡威1970s水蜜桃色官方-免费-完整版片, and the working curves were set through “external standard method” mode with instrument software. Subsequent testing for other 匡威1970s水蜜桃色官方-免费-完整版片 samples could be directly carried out under those working curves, without 匡威1970s水蜜桃色官方-免费-完整版片 for each sample. As shown by the results, values of detection limit (3s) for 17 elements were in the range of 0.012-0.452 μg·g^-1. Test for recovery was made by 匡威1970s水蜜桃色官方-免费-完整版片, giving results in the range of 93.0%-107%, with RSDs (n=11) of the determined values less than 8.0%. The comparison analysis of 匡威1970s水蜜桃色官方-免费-完整版片 samples by this method and inductively coupled plasma atomic emission spectrometry in GB/T 1420-2015 was carried out, and it was shown that the determined results obtained by the two methods were basically consistent.