OV-101 色譜級(jí)正庚烷的測(cè)定毛細(xì)管柱

、堿洗除去正庚烷中的雜質(zhì)，通過(guò)清水洗滌殘留的酸堿，并用干燥劑除去剩余的少量水分，蒸餾取特定溫度下的餾分得到高純度的正庚烷，該方法工藝簡(jiǎn)單，試劑成本低廉，并且除去雜質(zhì)的同時(shí)不引入其他有機(jī)雜質(zhì)，產(chǎn)品收率高。

色譜級(jí)正庚烷的測(cè)定毛細(xì)管柱 測(cè)試譜圖：




Determination of chromatographic grade n-heptane capillary column
Capillary column for the determination of chromatographic grade n-heptane Details:

Name: Capillary Column

Specification: 50m*0.25mm

Model: OV-101

Application: GB 8120-1987 High-purity n-heptane and isooctane purity determination method (capillary chromatography)



Haohan Chromatography (Shandong) Applied Technology Development Co., Ltd. has developed a method for producing chromatographic-grade n-heptane, which involves the field of chemical technology. The method includes the following steps: adding a mixed acid solution to industrial-grade n-heptane, pickling under stirring conditions, and then standing for stratification; separating the lower layer of acid solution, then adding lye, and reacting to n-heptane under stirring conditions. Carry out alkaline washing, then stand for layering; separate the lower layer of lye, add pure water to wash until the washing liquid is neutral; then stand for layering; separate the lower layer of aqueous solution, add a desiccant to dry; then filter to remove the desiccant; Take the filtrate for distillation, and collect the product at 98-100°C. This method removes impurities in n-heptane by pickling and alkali washing, washing the remaining acid and alkali with clear water, and removing the remaining small amount of water with a desiccant, and distilling the fraction at a specific temperature to obtain high-purity n-heptane. This method The process is simple, the reagent cost is low, and other organic impurities are not introduced while removing impurities, and the product yield is high.

Determination of chromatographic grade n-heptane capillary column Test spectrum: