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工艺应用
PROCESS AND APPLICATION

HPLC法测定建筑涂料及乳液中苯甲醛

文 陈小娟 林日平 李婷 罗乐怡 (佛山市顺德区巴德富实业有限公司，广东佛山528322)

摘 要：建立了建筑涂料及乳液中苯甲醛的液相色谱检测方法。样品经甲醇提取，用50 %甲醇饱和氯化钙溶液（V/V）
沉淀聚合物，离心后将上层清液过滤进样。采用C18色谱柱进行分离，甲醇-水为流动相洗脱，二极管阵列检测器进行
目标物检测，外标法定量。结果表明：在0~10 ug/mL范围内质量浓度和峰面积出现良好的线性关系（R=0.9998）。方
法检出限0.44 mg/kg，定量限为1.47 mg/kg，当添加水平在25 、50 、100 mg/kg时，加标回收率在87.60~91.10 %，
相对标准偏差RSD（n=6）均小于1.5 %，该方法可用于建筑涂料及乳液中苯甲醛的快速检测。

关键词：苯甲醛；建筑涂料；乳液；高效液相色谱法；二极管阵列检测器

Determination of benzaldehyde in architectural

coatings and emulsions by HPLC.

Chen Xiaojuan,Lin Riping,Li Ting ,Luo Leyi

(Shunde Batf Industrial Co.,Ltd.,Foshan,Guangdong 528322,China)

Abstract: A method has been developed for the benzaldehyde in architectural coatings and emulsions by HPLC .
The polymer was precipitated with 50% methanol/saturated calcium chloride solution (V/V) which was extracted with
methanol. The supernatant was filtered after centrifugating . Reversed-phase C18 column was used ,and methanol-
water was used as a mobile phase. The samples were detected by diode array, and external standard method was
used for quantification. The results showed that the linearity was good in the range of 0~10 ug/mL (R=0.9998). The limit
of detection was 0.44 mg/kg and the limit of quantification was 1.47 mg/kg. At the spiked level of 25, 50, 100 mg/kg, the
recoveries were 87.60 ~ 91.10%, and the relative standard deviation (n=6) was less than 1.5%. This method was used
for rapid detection of benzaldehyde in architectural coatings and emulsions.

Key words: benzaldehyde; architectural coating; emulsion; high performance liquid chromatography; diode array
detector

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