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研究了气相色谱内标法代替常规的标准工作曲线法测定偏二甲肼纯度 (UDMH)。用内标与偏二甲肼混合样品 ,避免了微量进样不准确的缺陷。结果表明 ,该方法相对标准偏差接近于 1% ,回收率大于 98.0 %。
The internal standard of gas chromatography was used to determine the purity of UDMH instead of the conventional standard working curve method. Mixing samples with internal standard and UDMH, to avoid the inaccurate micro-injection defects. The results showed that the relative standard deviation of this method was close to 1% and the recovery rate was more than 98.0%.