The results by NIR method are coincident with those determined by reference method(GC).The NIR method has higher repeatability and reproductivity than UOP 744-86 method.

• 结果证明:近红外光谱法的分析结果能够完全满足生产中的精度要求,再现性和重现性优于UOP方法744-86(气相色谱法)的要求。