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METHOD FOR PREPARING POLYSTYRENE SAMPLES FOR DETERMINING CONTENT OF ZINC USING ATOMIC-EMISSION SPECTROSCOPY

机译:原子发射光谱法测定锌含量的聚苯乙烯样品的制备方法

摘要

FIELD: chemistry.;SUBSTANCE: invention relates to the field of analytical chemistry and can be used in laboratories that carry out analytical control of technological production associated with the production of polystyrene. Described is a method for preparing polystyrene samples for the determination of zinc content using atomic emission spectroscopy, including sample preparation of the analyzed samples by ashing in a muffle furnace to carbonaceous residue, characterized in that the carbon residue is obtained by heating the polymer sample in a muffle furnace to 450–550 °C at a speed of 1–7 °C/min and keeping it in the range of these temperatures for 10–30 minutes.;EFFECT: reduced duration of sample preparation and improved accuracy of zinc determination.;3 cl, 2 tbl
机译:发明领域本发明涉及分析化学领域,可用于对与聚苯乙烯生产有关的技术生产进行分析控制的实验室。描述了一种使用原子发射光谱法制备用于测定锌含量的聚苯乙烯样品的方法,包括通过在马弗炉中灰化成碳质残留物来制备被分析样品的方法,其特征在于,通过加热聚合物样品中的碳来获得碳残留物。使马弗炉以1-7°C / min的速度升至450-550°C,并在这些温度范围内保持10-30分钟。;效果:缩短样品制备时间并提高锌测定的准确性。 ; 3 cl,2汤匙

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