摘要
采用氮磷检测器（NPD）分析检测液相粗甲醇中三甲胺,粗甲醇中的水分会对三甲胺的定性和定量产生影响,试样中水分含量越大,对三甲胺的测定影响也越严重。通过优化仪器的操作条件,调整适当的分流比,样品不需作另外的处理可直接进样消除试样中水分对三甲胺测定的影响。建立粗甲醇中三甲胺的气相色谱检测方法,三甲胺浓度在100~2000μg/L具有良好的线性关系。该方法方便快捷,能满足日常的生产分析检测需要。
This experiment adopts the NPD detector analysis testing liquid trimethylamine in the crude methanol. The moisture in the crude methanol will affect of qualitative and quantitative analysis of trimethylamine＇, the greater the moisture content in the sample, the more serious effects on the determination of trimethylamine. By optimizing the operating conditions of instrument and adjusting the appropriate diversion ratio, samples can be taken directly without additional processing, thus eliminating moisture＇s influence on the determination of trimethylamine in sample. Gas chromatography detection method was established to determine trimethylamine in the crude methanol. Trimethylamine concentration with in 100 - 2000 μg/L has good linear relation. The method is convenient and quick, and can meet the needs of the daily test.
出处
《大氮肥》
CAS
2014年第4期267-270,274,共5页
Large Scale Nitrogenous Fertilizer Industry
关键词
气相色谱
氮磷检测器
粗甲醇
三甲胺
gas chromatography
NPD detector
crude methanol
trimethylamine
