洗衣液中抗氧化剂BHT含量的两种测定方法比较研究  

Comparison of Two Methods for the Determination of Antioxidant BHT in Laundry Detergents

作　　者：李智 马娇颖 张天翼 LI Zhi;MA Jiaoying;ZHANG TianYi(WL Centralin David(GZ)Ltd,Guangzhou 210030,Guangdong,China)

机构地区：[1]威莱(广州)日用品有限公司,广东广州210030

出　　处：《中国洗涤用品工业》2024年第4期87-93,共7页China Cleaning Industry

摘　　要：研究两种不同方法测定洗衣液中抗氧化剂BHT的含量,通过气相色谱-质谱法(GC-MS)和超高效液相色谱法(UPLC)测定洗衣液中抗氧化剂二丁基羟基甲苯(BHT)含量,对测定结果进行比较,寻找一种快速、简便、准确度高的测定洗衣液中抗氧化剂BHT的方法。结果表明:气相色谱-质谱法(GC-MS)和超高效液相色谱法(UPLC)均可作为洗衣液中抗氧化剂BHT含量的测定方法。两种方法在各自浓度范围内线性良好(气相色谱-质谱法0.05~10.01 mg/L,超高效液相色谱法0.80~50.05 mg/L),相关系数R均大于0.999,精密度分别为1.32%~3.22%和0.76%~1.81%;加标回收率分别为102.04%~112.80%和98.67%~103.48%,检出限分别为0.5 mg/kg和5 mg/kg。超高效液相色谱法(UPLC)检测快速,定量准,而气相色谱-质谱法(GC-MS)检出限更低,并可用于准确定性。This paper utilized gas chromatography-mass spectrometry(GC-MS)and ultra-high performance liquid chromatography(UPLC)to analyze the content of the antioxidant butylated hydroxytoluene(BHT)in laundry detergents.and analyzed the results to search a quick,simple and accurate method for the determination of BHT in laundry detergents.The results indicated that both GC-MS and UPLC were suitable for determining the antioxidant BHT content in laundry detergents.The two methods had good linearity in their respective concentration ranges(0.05~10.01 mg/L by gas chromatography-mass spectrometry and 0.80~50.05 mg/L by ultra-high performance liquid chromatography),with correlation coefficients(R)exceeding 0.999.The precision ranged from 1.32%to 3.22%for GC-MS and from 0.76%to 1.81%for UPLC.The recoveries were 102.04%~112.80%and 98.67%~103.48%.The detection limits were 0.5 mg/kg and 5 mg/kg.These data pointed that ultra-high performance liquid chromatography(UPLC)provided rapid detection and accurate quantification,while gas chromatography mass spectrometry(GC-MS)offered lower detection limits and could be utilized for precise qualification.

关 键 词：洗衣液 二丁基羟基甲苯(BHT) 超高效液相色谱法(UPLC) 气相色谱-质谱法(GC-MS) 

分 类 号：TQ649.6[化学工程—精细化工]