Key Laboratory of Phytochemical R&D of Hunan Province, Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research of Ministry of Education, Hunan Normal University, Changsha 410081, China.
Anal Methods. 2021 Feb 28;13(8):986-995. doi: 10.1039/d0ay02215b. Epub 2021 Feb 3.
The discharge of wastewater containing surfactants and other industrial pollutants is contaminating the world's water resources which should be taken seriously. This paper describes a paper spray mass spectrometric (PS-MS) method for rapid and quantitative analysis of anionic and cationic surfactants in water samples. Eight cationic surfactants and four anionic surfactants can be simultaneously determined in positive or negative mode without sample pretreatment and chromatographic separation. The PS-MS analysis time was only 10 s. Under optimized conditions, the method presented a suitable linear range (1-80 μg mL, linear regression coefficients (R) higher than 0.995 for cationic surfactants, R higher than 0.990 for anionic surfactants), a low limit of detection (0.05-0.35 μg mL for cationic surfactants and 0.20-0.35 μg mL for anionic surfactants), and satisfactory recovery values (97.3-106.1%). The method validation indicated that the method precision and accuracy were satisfactory. The results demonstrated that PS-MS is especially suitable for the high-throughput analysis of surfactants in water samples.
含表面活性剂和其他工业污染物的废水排放正在污染世界水资源，应引起重视。本文描述了一种纸喷雾质谱（PS-MS）方法，用于快速定量分析水样中的阴离子和阳离子表面活性剂。在无需样品预处理和色谱分离的情况下，可同时在正或负离子模式下同时测定八种阳离子表面活性剂和四种阴离子表面活性剂。PS-MS 分析时间仅为 10 秒。在优化条件下，该方法呈现出合适的线性范围（1-80μgmL，阳离子表面活性剂的线性回归系数（R）高于 0.995，阴离子表面活性剂的 R 高于 0.990）、低检测限（阳离子表面活性剂为 0.05-0.35μgmL，阴离子表面活性剂为 0.20-0.35μgmL）和令人满意的回收率值（阳离子表面活性剂为 97.3-106.1%）。方法验证表明，该方法具有令人满意的精密度和准确度。结果表明，PS-MS 特别适用于水样中表面活性剂的高通量分析。
