液相色谱—质谱联用技术在兽药残留检测中的应用

兽药残留是动物源性食品安全性下降的主要原因之一。兽药或饲料中药物残留超标严重威胁着人类的生命和健康。本文阐述了液相色谱-质谱法的原理和特点、兽药残留检测的必要性以及我国兽药残留检测的现状,最后对液相色谱-质谱法在兽药检测中的应用进行了分析,对保证食品安全起着非常重要的作用。     

动物源性食品中β-内酰胺类药物残留检测研究进展

自1928年青霉素抗生素发现以来,β-内酰胺类抗生素已增至几百种,其品种和数量居各类抗生素之首。β-内酰胺类抗生素在食物源性动物体内残留,易使人类产生过敏反应和细菌耐药性,目前许多国家已开始严格监控β-内酰胺类抗生素在动物饲养过程中使用剂量和方法。为全面了解动物源性食品中β-内酰胺检测研究现状,本文详细介绍了动物源性食品中β-内酰胺类药物残留的样品前处理与检测方法研究进展。     

有机磷类农药残留的检测技术

近年来,随着农业生产规模的扩大,各类农药使用量不断上升,在各类农药中,有机磷农药的适用范围较广、毒性较大,如果人类误食含有有机磷农药残留的食品就会发生中毒事件。基于此,本文先分析了有机磷类农药残留的危害,然后提出了有机磷类农药残留的检测技术,如快速检测法、光谱检测法、色谱检测法与高效液相色谱法等,以期为农药残留检测工作提供借鉴与参考。     

高效液相色谱法测定动物源性食品中甲氧苄胺嘧啶药物残留

研究了动物源性食品中甲氧苄胺嘧啶药物残留的提取、净化和高效液相色谱分析条件,建立了高效液相色谱法测定动物性食品中甲氧苄胺嘧啶药物残留的方法,该法检测限0.025mg/kg,回收率为84%～98%.     

GB/T25165-2010对肉类食品中牛羊猪源性成分检测的适用性研究

为研究国标方法GB/T 25165-2010《明胶中牛、羊、猪源性成分的定性检测方法实时荧光PCR法》对肉类食品检测的适用性,本文优化其样品前处理方法,验证标准中引物、探针对肉类食品检测的特异性和灵敏度,并通过大量市售样品进一步确认方法的适用性.结果表明,该方法适合检测肉类食品中的牛、绵羊、猪源性成分,不适合山羊源性成...     

应用QuEChERS方法检测动物源性食品中药物残留的研究进展

动物源性食品中药物残留问题日益突出,传统检测方法存在耗时长、不稳定等问题,而QuEChERS方法具有简便、快速等多种优势,可用于动物源性食品中多种药物残留的分析。本文综述了近些年应用QuEChERS方法检测动物源性食品中药物残留的研究进展,以期为研究相关检测方法和标准提供参考。     

柱前衍生高效液相色谱法检测动物源性食品中4种阿维菌素类药物残留

建立了用液相色谱同时检测动物源性食品中的阿维菌素、伊维菌素、多拉菌素、莫西菌素残留量的方法。样品经乙腈提取,中性氧化铝固相萃取小柱净化,1-N-甲硝基咪唑和三氟乙酸酐柱前衍生,再用液相色谱荧光法进行检测。方法操作简单、线性好、准确、灵敏,检测低限达到0．001mg／kg,回收率在92％～101％之间。     

样品前处理技术结合高效液相色谱在食品安全检验中的应用

本文简要介绍样品前处理技术和高效液相色谱技术的简单介绍,并通过浊点萃取结合高效液相色谱技术测定饮料中的赤藓红含量和固相微萃取结合高效液相色谱技术测定水体中的农药残留两个实验具体说明样品前处理技术和高效液相色谱在食品安全检验中的应用。     

液相色谱-高分辨质谱联用技术在食品欺诈检测鉴别中的应用价值探讨

现阶段我国食品行业食品欺诈行为突出,其中包括违法使用农、兽药,大量滥用食品添加剂及掺杂非食用物质等问题。食品欺诈检测与鉴别受到重视,对液相色谱-高分辨质谱联用技术的分类、优势及其在食品欺诈问题的检测与鉴别中的价值展开综述分析,为液相色谱-高分辨质谱联用技术在食品安全的应用上提供参考意见。     

贵州省出口动物源性食品中有毒有害物残留的调查

1 前言 残留（农药与兽药残留，重金属，生物与化学毒素，有毒物质，超标的微量元素）不仅直接影响出口动物源性食品的质量，而且影响内地与进口国家和地区（俄罗斯、香港等国家或地区）的贸易关系，还与消费者的安全卫生和身体健康密切相关。为进一步提高进出口动物源性食品的安全卫生质量，保护人民的身体健康，增强动物源性食品在国际市场上的竞争力，进一步开拓国际市场创造条件，促进动物源性食品贸易的健康发展，同时确保动物源性食品企业农药兽药残留符合进口国要求，     

纳米技术在聚烯烃中的研究进展

综述了聚烯烃纳米复合材料的优点、使用价值和近年来国内外聚烯烃纳米复合材料的研究进展，并介绍了无机粒子／聚烯烃复合材料和粘土／聚烯烃复合材料，重点阐述了粘土与聚乙烯、聚丙烯纳米复合材料的制备方法及粘土／聚烯烃纳米复合材料插层热力学分析，对目前聚烯烃纳米复合材料存在问题及发展前景进行了探讨。     

Developments in Consumer Protection in India

This paper surveys the major developments in the field of consumer protection in India since 1984, when the statutory provisions for regulating unfair trade practices were incorporated for the first time.Among the developments described in the paper is the strengthening of provisions for consumer protection through amendments to the Act regulating restrictive and monopolistic trade practices (the MTRP Act). Public-sector undertakings and co-operative societies have been brought within the purview of the Act, and consumers have obtained the right to participate in inquiry proceedings before the MRTP Commission.Consumers and their associations have been given the right to seek redress of grievances arising out of the violation of certain pieces of legislation, including the Drugs and Cosmetics Act. The Consumer Protection Act, 1986, was enacted in order to provide speedy and inexpensive redress of consumers' grievances. Redress can now be sought before any consumer court also for negligence or deficiency in medical services.The Bureau of Indian Standards Act, 1986, has strengthened the measures for the standardisation and quality control of manufactured goods.A Consumer Welfare Fund has been set up to provide financial assistance to voluntary consumer organisations and for the general development of consumer movement in the country. A spurt in voluntary consumer organisations in different parts of the country can also be observed.Other developments include the establishment of a separate Department of Consumer Affairs in the Union Government and the setting up of a Consumer Product Testing Laboratory.     

关于我国资产证券化若干问题的探讨

资产证券化是一项复杂的金融工具创新,引进和实施这种新型的融资工具需要大量的配套工作。我国实施资产证券化需要解决特设机构的设立、基础资产的选择、破产隔离、信用增级、会计处理、税收政策以及立法和监管等方面的问题。     

Healthy Investments in Investing in Health

This article discusses socially responsible investing (SRI) and tobacco. SRI allows investors, both institutional and individual, to express their concerns and make their social and ethical stands known to the companies they invest in and patronize. The tobacco industry is active in every country on the globe and generates huge profits, while tobacco use is responsible for 4 million deaths every year.The authors explore past and current views on investment in tobacco, partly based on a survey conducted by the Tobacco Free Initiative of the World Health Organization (WHO). There is clearly a trend toward divestment from tobacco for both ethical and financial reasons. Tobacco-free investments can be both ethically sound and financially profitable.     

Economic Keywords in 2007 in China

RMB exchange rate The exchange rate of Renminbi,the Chinese currency, witnessed an appreciation of around six percent to one U.S. dollar this year. On December 13, the central parity rate stood at RMB 7.3568 against one dollar,according to the Chinese Foreign Exchange Trading System, breaking the 7.36 mark.     

Conflict in Supplier–Retailer Relationships in the Brewery Industry in Cameroon

The authors develop a theoretical framework to explain conflict in supplier–retailer relationships. In addition to traditional influence strategy variables, the framework links conflict to retailer dependence and supplier formalization. The framework is empirically tested in the Cameroonian brewery industry. The findings support the view that channel conflict is inversely related to retailer dependence and supplier formalization. Contrary to expectations, the use of noncoercive influence strategies (information exchange and recommendations) has no significant effect on conflict, while, as expected, the use of coercive influence strategies (threats and promises) increases conflict.     

粤北山区砖园仓储粮机械通风应用研究

在砖园仓机械通风应用试验中,正确运用理论计算,精确得出通风技术数据,依此设计通风系统,结果表明：在实仓运行中,检测的主要技术参数和设计值基本相符,经136h通风,粮温从38℃降至13℃,吨粮降温耗电0.011℃,降温好、电耗低,证明设计方法正确,符合南方稻谷产区,解决了基层普遍存在的砖园仓机械通风盲目设计问题,为规范设计作出了示范,验证了粮层压力正确计算方法。     

Injuries in different socio-economic groups in Finland

Introduction. Suicides are a hidden and unrecognized epidemic in the Indian region, affecting predominantly younger age groups. Information on causative risk factors and mechanisms is not available in the country, which is crucial for designing intervention programmes.

Objectives. To identify and quantify risk factors for completed suicides in the city of Bangalore.

Methods. A case–control study was conducted with the families of 269 completed suicides and 269 living controls within the broader population of the city using psychological autopsy methods.

Results. The study has shown that several factors in the areas of family, marriage, education, occupation, general health, mental health and absence of protective factors contribute significantly for suicides. The cumulative and repetitive interaction of several factors in a complex manner results in suicides. The significant factors were presence of previous suicidal attempt in self (odds ratio (OR) = 42.62), interpersonal conflicts and marital disharmony with spouse (OR = 27.98), alcoholism in self (OR = 23.38), presence of a mental illness (OR = 11.07), sudden economic bankruptcy (OR = 7.1), domestic violence (OR = 6.82) and unemployment (OR = 6.15). Individuals completing suicides did not have a positive outlook towards life, problem-solving approaches and coping skills.

Conclusion. The observed findings are at variance with suicidal causation in the West in some areas operating in a different sociocultural and economic environment. The intervention strategies should include prioritized macro and micro level efforts aimed at individual, family and society.