Mass spectrometric studies of thermal decomposition products of reference materials for use in solid sampling atomic spectrometry
Mass spectrometric studies of thermal decomposition products of reference materials for use in solid sampling atomic spectrometry
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用于固体采样原子光谱测定的标准物质热分解产物的质谱研究
DOI：
10.1016/s0584-8547(98)00177-3
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发表时间：
1998
期刊：
影响因子：
--
通讯作者：
R. Dams
中科院分区：
文献类型：
--
作者：
G. Galbács;T. Kantor;L. Moens;R. Dams
当在热分析炉中加热至 1500°C 时，通过质谱法鉴定植物、土壤、沉积物和污泥来源的标准材料释放的气态分解产物。同时，还进行了热重、差热重和差热测量，对 5–10mg 的样品质量应用 20°Cmin−1 的加热速率。给出了十个参考样品的组合热分析曲线，也表明了物种的演化，并且针对选定的温度限制将累积质量损失数据制成表格。利用热数据优化固体采样电热汽化 (SS-ETV) 进样方法，以有机和无机样品的电感耦合等离子体光学和质谱 (ICP-AES/MS) 为例。
Gaseous decomposition products released from reference materials of plant, soil, sediment and sludge origin were identified by mass spectrometry when heated up to 1500°C in a thermoanalytical furnace. Simultaneously, thermogravimetric, differential thermogravimetric and differential calorimetric measurements were also made, applying a heating rate of 20°Cmin−1to sample masses of 5–10mg. Combined thermoanalytical curves, indicating also the species evolved, are presented for ten reference samples, and cumulative mass loss data are tabulated for selected temperature limits. Utilization of the thermal data for the optimization of the solid sampling electrothermal vaporization (SS–ETV) sample introduction method is exemplified for inductively coupled plasma optical and mass spectrometry (ICP–AES/MS) of organic and inorganic samples.