摘要
就 S- 316 (氯化三氟乙烯 )和 CCl4(四氯化碳 )两种萃取剂在非分散红外测油法中的应用进行探讨、分析。通过对使用两种萃取剂 (S- 316和 CCl4)方法的线性、精密度、检出限及回收率的比较 ,结果表明 ,在测油仪标定满刻度 2～ 2 0 0 m g/L 范围内成线性 ,测量精度 1%左右 ,检出限为 0 .1m g/L,加标回收率达到 85 %以上。在严格控制萃取剂纯度和分析操作的条件下 ,使用两种萃取剂所得结果一致 ,完全满足现场测油的精度。但使用 CCl4的成本远低于 S- 316 ,在用非分散红外法测水中含油量中有很高的实用价值 。
Experimental researches are made on the application of two extraction solvents S-316(a polymer of chlorotrifluoroethylene) and CCl 4 to the non dispersive infrared analysis. By the comparison of the linearity,the measuring accuracy and the delection limit,it shows that if the conditions of the operation and the purity of the extraction solvent are controlled strictly,the results must be the same:in the area of 2～200 mg/L demarcated by the instrument it is linear;the measuring accuracy is about 1%,the detection limit is 0.1 mg/L,and the recovery rate is over 85%. The demand in practice will be met entirely. But by the use of extraction solvent CCl 4,the cost is much less than that of extraction solvent S-316. This method has a great value in the determination of oil bearing amount in water,having wide use prospects in the environmental monitoring.
出处
《工业水处理》
CAS
CSCD
2001年第7期33-37,共5页
Industrial Water Treatment
