There is 27.2% NaOH in the sample and a little NaCl by qualitative and quantative analysis, and the residual is water.
通过定性定量分析，该样品有高达27.2%的氢氧化钠及很少量的氯化钠，其余为水。
The procedure of sample preparation for residual analysis of organochlorinated pesticides in a paddy soil contaminated by long-term wastewater irrigation was investigated.
研究了不同样品净化方法和方法组合在长年污灌的水稻土有机氯农药残留分析中的效果。
The thermal degradation performance of the above flexible PVC sample is improved obviously, The final amount of residual carbon increased from 11.22% to 19.55%;
纳米铝酸锌的加入明显地改善了软PVC试样的热分解性能，样品的最终残炭量由11.22%提高到19.55%；
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