GFAAS测定钼时两种石墨管的比较研究

Comparison of Two Kinds of Graphite Tubes in Determination of Molybdenum by GFAAS

本文研究比较了全热解石墨管与热解涂层石墨管在未配备温度控制装置的石墨炉原子吸收分光光度计上测定高温难熔元素钼时的测量性能。结果表明,全热解石墨管优于热解涂层石墨管。本文对两种石墨管性能差异的主要原因进行了初步探讨。

Differences between total pyrolytic graphite tubes and pyrolytically coated graphite tubes at characteris-tis in determination of molybdenum by graphite furnace atomic absorption spectrometry (GFAAS) havebeen investigated.The atomic absorption spetrometer used in this paper has not been equipped-with the tem-perature accessory.The results have shown that the total pyrolytic tubes are superior to the pyrolyticallycoated graphite tubes.