共查询到19条相似文献,搜索用时 359 毫秒
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关于食盐加碘工艺的探讨河北省黄骅盐场王玉刚,陈刚关键词加碘工艺,加碘设备生产加碘食用盐供应市场是实现消除碘缺乏病最有效的方法,我国在1996年将实现食用盐全部加碘。为此,各盐区都在积极筹建粉洗加碘盐厂或精制加碘盐厂以实现食盐加碘的目标,因此食盐加碘工... 相似文献
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本文针对食盐实际生产过程中加碘指标出现波动的异常情况,分析产生的原因,找出影响加碘均匀性的主要因素是食盐粒度的不均匀,阐述了粒度在食盐生产过程中对碘含量均匀性控制的重要性,提出实施控制食盐粒度的具体措施,通过改进生产工艺,加强生产过程控制,有效提升了食盐中碘指标的均匀性。 相似文献
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检测湖南省加碘食盐碘含量,为碘缺乏病的消除及防治提供科学决策依据。根据GB/T 8618—2001《制盐工业主要产品取样方法》取样和《食盐卫生标准》检测,2004~2013年每年每个季度在全省14个地级市各大型超市抽取不同品种的加碘食用盐样品。结果表明:2004~2013年共抽取和检测加碘食用盐样品1 680份,加碘食盐碘含量平均值为27.31~33.98 mg/kg,加碘食盐中碘含量中位数为27.58~33.70 mg/kg,符合GB 5461—2000和GB 26878—2011中关于碘含量的规定。加碘食盐中碘含量合格率为95.55%~100%,且呈稳步提高趋势。 相似文献
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加碘食盐的碘淀粉显色系列监测方法的研究 总被引:1,自引:0,他引:1
在病区推广加碘食盐是防治缺碘引起的地方性甲状腺肿和地方性克汀病的行之有效办法。对加碘食盐的碘含量监测是推广加碘食盐病区卫生防疫部门长期的工作。本项研究对16种常用试剂在不同碘剂制作的加碘食盐中碘定性效能进行了观察。研究结果表明:硫酸铜、漂白粉、氯胺丁等有氧化碘离子为碘分子的试剂都和亚硝酸盐一类化学试剂一样可作为碘化盐(KI、NaI等)制作的加碘食盐的碘定性试剂,但对碘酸盐制作的加碘食盐无效;硫氰酸钾、硫脲、偏重亚硫酸钠、亚硫酸钠、硫代硫酸钠等有还原性试剂能使碘酸盐中碘还原为碘分子,可以用作碘酸盐加碘食盐的碘定性试剂,但这些试剂不能用于测定碘化盐配制的加碘食盐。选用可共存于一个体系中的氧化剂和还原剂,可以达到同时测定碘化盐及碘酸盐目的。在这种通用于各种加碘食盐碘定性方法中,以硫酸铜和硫氰酸钾所组成的体系为最好,检测液使用期可达1年以上。本次研究的方法均以碘淀粉蓝色为指示色,属碘淀粉显色系列。 相似文献
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浅议食盐加碘剂KI和KIO_3的选用江苏盐业研究设计院薛金占关键词加碘盐,加碘剂,稳定剂目前世界各国加碘盐选用的加碘剂集中为KI和KIO3,欧美等国大多采用KI作加碘剂,而亚、非国家则多采用KIO3作为加碘剂。本文通过对KI及KIO3在食盐中各自特性?.. 相似文献
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文章介绍了应对食用盐加碘新标准施行,为满足不同销售区域市场需求及更高精度要求而进行的加碘设备系统改造. 相似文献
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文章根据湿法工艺加碘机对喷碘系统混合均匀性,材质耐腐蚀性,匹配同步性,环境条件适应性和经济实用性要求,介绍了对以高压泵、喷嘴、过滤等为特征的喷雾系统部件装置的设计,满足生产使用要求,为加碘盐合格提供技术保障。 相似文献
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Iodine deficiency disorders (IDD) is still a major public health problem and iodized salt remains the most effective means to control IDD in India. Few reports indicate that vegans have inadequate iodine intake while at the same time concerns are being raised on the implementation of universal salt iodization in the country. Therefore, we investigated the iodine content in bread, milk and commonly used Indian recipes prepared without iodized salt and the retention of inherent iodine therein. Results showed considerable iodine content in bread (25 μg/100 g) and milk (303 μg/L) as a positive fallout of universal salt iodization. Iodine content in 38 vegetarian recipes prepared without iodized salt was very low (2.9 ± 2.4 μg/100 g). Retention of inherent iodine (65.6 ± 15.4%) and iodine from iodized salt (76.7 ± 10.3%) in the same recipes was comparable. Thus, universal salt iodization programme remains the single most important source of dietary iodine for the Indian population. 相似文献
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碘是人体甲状腺激素合成的必需元素,也是人体必需的微量元素之一。依据世界卫生组织提出的食盐加碘补碘策略, 1994年我国颁布了《食盐加碘消除碘缺乏危害管理条例》。但长期过量摄入无机碘,不仅会引起甲状腺功能失调,增加患甲状腺癌的几率,还会导致其他组织器官病变。海藻是天然的食用碘资源,有机碘含量最高达80%。通过海藻碘、有机碘和无机碘的毒性研究发现,长期大量摄入海藻碘和有机碘对甲状腺的危害要小很多。本文分析了我国补碘现状及国内外碘的限量,对比海藻碘、有机碘和无机碘的毒性差异,阐述当前海藻碘的毒性研究进展,为进一步开展海藻碘的食用安全性评估和制定碘的限量提供参考。 相似文献
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BACKGROUND: Evaluation of the sustainability of iodine-deficiency disorders control programs guarantees successful and sustained virtual elimination of iodine deficiency. The Lesotho universal salt iodization legislation was enacted in 2000 as an iodine-deficiency disorders control program and has never been evaluated. OBJECTIVES: To assess the sustainability of the salt iodization program in Lesotho, 2 years after promulgation of the universal salt iodization legislation. METHODS: The proportion to population size method of sampling was used in 2002 to select 31 clusters in all ecological zones and districts of Lesotho. In each cluster, 30 women were selected to give urine and salt samples and 30 schoolchildren to give urine samples. The salt samples were analyzed by the iodometric titration method, and the ammonium persulfate method was used to analyze the urine samples. The chairperson of the iodine-deficiency disorders control program was interviewed on programmatic indicators of sustainability. SAS software was used for statistical analysis of the data. RESULTS: The urinary iodine concentrations of very few children (10.1% and 21.5%) and women (9.8% and 17.9%) were lower than 50 microg/L and 100 microg/L, respectively. At the household level, 86.9% of the households used adequately iodized salt. Only four indicators of sustainability have been attained by the salt iodization program in Lesotho. CONCLUSIONS; Iodine-deficiency disorders have been eliminated as a public health problem in Lesotho, but this elimination is not sustainable. Effective regular monitoring of salt iodine content at all levels, with special attention to iodization of coarse salt, is recommended, together with periodic evaluation of the iodization program. 相似文献