CAJ | 학술논문

重金属污染已成为影响食品安全的重要因素之一，在世界范围内引起了越来越广泛的关注，因此开发建立新的食品中金属检测方法具有十分重要的意义。本文介绍了新兴的绿色环保分离富集技术-浊点萃取及其结合原子吸收光谱法在食品中金属离子检测方面的应用。浊点萃取技术具有经济、安全、高效、简便等优点，近年来已开始广泛应用于食品中金属检测的样品前处理。本文讨论了浊点萃取技术的基本原理，阐述了表面活性剂的种类、浓度、溶液pH值、平衡时间、温度以及络合物浓度等影响萃取效率、富集系数的主要因素，及其与火焰原子吸收光谱联用后，在食品重金属检测中的研究应用情况。最后对浊点萃取技术在食品金属离子检测中的发展趋势进行了展望。
중금속오염이성위영향식품안전적중요인소지일，재세계범위내인기료월래월엄범적관주，인차개발건립신적식품중금속검측방법구유십분중요적의의。본문개소료신흥적록색배보분리부집기술-탁점췌취급기결합원자흡수광보법재식품중금속리자검측방면적응용。탁점췌취기술구유경제、안전、고효、간편등우점，근년래이개시엄범응용우식품중금속검측적양품전처리。본문토론료탁점췌취기술적기본원리，천술료표면활성제적충류、농도、용액pH치、평형시간、온도이급락합물농도등영향췌취효솔、부집계수적주요인소，급기여화염원자흡수광보련용후，재식품중금속검측중적연구응용정황。최후대탁점췌취기술재식품금속리자검측중적발전추세진행료전망。
Heavy metal pollution has been one of the major influencing factor to food safety, which attracts more and more attention from all over the world. Hence, it is very important to establish a new detection method of metal in food. Application of an emerging, green and environment benign separation and enrichment process, cloud point extraction were introduced, combined with atomic absorption spectroscopy. Cloud point extraction is economic, safe, simple and highly efficient, which has been widely used in the sample pretreatment of metal detections in food. This paper discussed the basic principle of cloud point extraction. Several factors were elaborated, such as the species and concentration of surfactants, pH values, equilibrium temperature and time, as well as the concentration of chelating reagents, which influenced the extraction efficiency and enrichment factor. In addition, the applications of cloud point extraction combined with the flame atomic absorbance spectroscopy on the metal determination in food were reviewed. Finally, the development trend of cloud point extraction technology in modern food detection was prospected.