【摘要】 用50 mm的反相高效液相色谱短柱在V甲醇/VH2O=55/45,其中水相为0.1 mol/L乙酸0.1 mol/L乙酸铵的缓冲溶液(pH=4.70),流速0.6 mL/m in条件下,约10 m in内实现了无机铅离子(Pb2+)、氯化三甲基铅(TML)、氯化三乙基铅(TEL)和氯化三苯基铅(TPhL)的高效液相色谱-电感耦合等离子体质谱(HPLC-ICP-MS)联用分析。4种铅形态在去离子水和自来水中的加标回收率分别为93.8%~115.6%和89.3%~137.8%;峰强度和保留时间的RSD分别为7.4%~14.3%和0.5%~1.3%;仪器检出限及方法检出限分别为0.27~3.07μg/L和1.20~2.33μg/L。更多还原

【Abstract】 Speciation of inorganic lead(Pb²⁺),trimethyllead chloride（TML）,triethyllead chloride（TEL）,triphenyllead chloride（TPhL） was investigated using high performance liquid chromatography（HPLC） with the detection of inductively coupled plasma mass spectrometry（ICP-MS） on a short reversed-phase liquid chromatographic column of 50 mm long in more than 10 minutes.Optimal chromatographic conditions were 0.1 mol/L acetic acid-0.1 mol/L ammonium acetate buffer at pH 4.70 and 55% methanol as the mobile phase with flow rate of 0.6 mL/min.Recovery of four lead species in de-ionized water and tap water are in the range of 93.8%¹15.6%and 89.3%¹37.8%,respectively.RSD of peak intensity and retention time is in the range of 7.4%¹4.3% and 0.5%¹.3% and detection limits of equipment and method are in the range of 0.27³.07 μg/L and 1.20².33 μg/L,respectively.更多还原