CAJ | 학술논문

研究了气相色谱法用于测定萜烯树脂中的有机溶剂残留量的技术，从标准工作曲线绘制、最低检出限、精密度、重复性、回收率等方面验证了方法的可行性，并进行了实际应用效果考察。结果表明，毛细管气相色谱法在测定树脂产品中的甲苯、1，2-二氯乙烷、苯等有机溶剂含量时，甲苯的最低检出限为0．2mg／L、1，2-二氯乙烷的最低检出限为1．7mg／L、苯的最低检出限为0．3mg／L。测定甲苯时的精密度标准偏差为0．04；平均回收率为104．1％，标准偏差为1．99。该方法应用于测定自制的萜烯树脂样品时，未检测到产品中有苯和1，2-二氯乙烷残留，测得甲苯溶剂的残留量小于25mg／kg。
연구료기상색보법용우측정첩희수지중적유궤용제잔류량적기술，종표준공작곡선회제、최저검출한、정밀도、중복성、회수솔등방면험증료방법적가행성，병진행료실제응용효과고찰。결과표명，모세관기상색보법재측정수지산품중적갑분、1，2-이록을완、분등유궤용제함량시，갑분적최저검출한위0．2mg／L、1，2-이록을완적최저검출한위1．7mg／L、분적최저검출한위0．3mg／L。측정갑분시적정밀도표준편차위0．04；평균회수솔위104．1％，표준편차위1．99。해방법응용우측정자제적첩희수지양품시，미검측도산품중유분화1，2-이록을완잔류，측득갑분용제적잔류량소우25mg／kg。
The determination technique and method of organic solvents remained in terpene resin was studied by gas chromatogra-phy. According to drawing standard curve, testing the precision and repeatability, calculating the lowest detection limit and determining recovery ratio, its feasibility was confirmed. Its practical application effect was further investigated. The results indicated that, the lowest detection limits determined by capillary gas chromatography for toluene, 1,2-dichlorethane and benzene were 0.2 mg/L, 1.7 mg/L, and 0.3 mg/L, respectively. For toluene determination, the standard deviation of determining precision is 0.04; recovery ratio and its standard deviation are 104.1% and 1.99, respectively. While applying the method to determine samples of terpene resin prepared in laboratory, it showed that there was only toluene as organic solvent in the resins and its residual contents was less than 25 mg/kg. No benzene and 1,2-dichloroethane were indicated in the resins.