食品添加剂中重金属元素前处理与检测方法研究进展
2021-01-04何天宝
何天宝
摘 要:随着经济的高速发展,食品行业也得到了较大的创新和进步。多数厂商为改善食品的风味和外观、延长保质期等,往往会在食品中添加食品添加剂。而部分添加剂中含有重金属元素,过量添加会对人体健康会产生较大的危害。因此在食品检测中应加强对重金属元素检测,采取有效的前处理方法,提高检测准确度。鉴于此,本文主要分析食品添加剂中重金属元素前处理措施,并探究其检测技术的应用,旨在为加强食品检测安全提供借鉴和参考。
关键词:食品添加剂;重金属元素前处理;检测方法
Research Progress of Pretreatment and Detection Methods of Heavy Metal Elements in Food Additives
HE Tianbao
(Food and Drug Inspection and Testing Center of Linze County, Zhangye City, Gansu Province, Linze 734200, China)
Abstract: With the rapid development of the economy, the food industry has also achieved great innovation and progress.Most manufacturers to improve the flavor and appearance of food, extend the shelf life, often add food additives to the food.And some additives contain heavy metal elements, excessive addition will cause greater harm to human health.Therefore, in the food detection, the detection of heavy metal elements should be strengthened, and an effective pretreatment method should be adopted to improve the detection accuracy.In view of this, this paper mainly analyzes the pretreatment measures of heavy metal elements in food additives, and explores the application of its detection technology, aiming to provide a reference for strengthening food testing safety.
Keywords: food additives; pretreatment of heavy metal elements; detection methods
食品添加剂在现代食品工业快速发展的过程中应用越来越广泛,部分不法厂商为降低生产成本,出现乱加、多加食品添加剂的现象,从而对消费者的身体健康产生威胁。近年来因食品添加剂引发的食品安全问题频发,如三鹿奶粉事件、苏丹红事件、染色馒头事件等,造成了极为恶劣的影响。因此在新发展时期下,对食品安全检测提出了更高的要求,尤其是对于重金属元素的检测至关重要,因此相关检测人员需要采取有效的前处理措施,应用科学先进的检测技术,保证食品安全达标。
1 食品添加剂中重金属元素超标的危害
当前我国食品添加剂共有23个类别、2 000余个品种,其中包括常见的抗氧化剂、漂白剂、着色剂、增味剂、防腐剂及甜味剂等。对于各种食品添加剂均有明确的限量规定,超出限量值则判定为不合格食品。但随着食品行业竞争日益激烈,部分不法厂商仍通过不合理利用食品添加剂降低成本,以此则会酿成安全事故,其中重金属元素的超标所造成的危害相对较大。……
