高效液相色谱法同时检测水产品中7种四环素类抗生素残留的研究

采用Inertsil C8-3(5μm,250 mm×4.0 mm i.d.)反相色谱柱,以pH 4.0的EDTA-McIlvaine缓冲溶液为提取溶液,以HLB固相萃取柱为净化柱,以甲醇 乙腈 0.01 mol/L三氟乙酸为流动相(梯度洗脱),流速为1.5 mL/min,检测波长为350 nm,进样量100μL,建立了同时检测水产品中四环素、金霉素、土霉素、强力霉素、去甲基金霉素、甲烯土霉素和二甲胺四环素等7种四环素类抗生素残留的液相色谱法。该方法的检出限为1.5~5.0μg/kg,测定低限为50μg/kg,线性范围为50~1 000μg/kg,加标回收率为75.2%~100.6%,相对标准偏差为2.19%~10.56%。上述结果表明,该方法具有灵敏、准确、简便、快速等优点,适用于水产品中上述7种四环素类抗生素残留的同时检测。     

后配额时代中国纺织服装业应对国外反倾销法律对策探讨

国际纺织服装业进入了后配额时代。欧美等发达国利用“非市场经济条款”对我国进行卡压,“特殊保障措施”是悬挂在中国纺织服装企业头上的一把“达摩克利斯之剑”。我国政府必须尽快建立纺织品贸易摩擦预警机制,企业要采取得力措施应对“非市场经济条款”,国家要建立健全反应快捷的反倾销预防应对机制,出口企业要积极慎重地应对国外反倾销的指控。     

福建工业竞争力的现状、问题与对策

产业竞争力是影响当前和未来福建经济发展的主要因素。本文分析了福建工业竞争力的总体状况及面临的问题,并提出提升福建工业竞争力的若干思路。     

YOUR GREEN HOME IN BEIJING CBD

正Established in 1982 as the garden hotel in the heart of the Central Business District,Jianguo Hotel Beijing is like an oasis in the bustling city of Beijing.The Hotel is situated adjacent to the Beijing diplomatic quarter,Just a few minutes walking distance from the metro and the     

‘I’m about to get my tamp on.’ Framing tampons in We Media promotion posts targeting Chinese females

With much silence around menstruation, certain superstitions and beliefs still prevail in Confucian East Asian cultures such as China. As a result, domestic tampon brands did not appear until 2016. This study examines the promotion posts of tampons that are new to Chinese females on We Media channels. Specifically, a content analysis was conducted on the frames used in these promotion posts composed by different types of public accounts, guided by the intersectional perspective. Besides the commonly used generic frames, the issue-specific frames reflected how public accounts symbolized the use of the product. More than half of the promotion posts focused on the health benefits of tampons, and about a quarter portrayed them as being trendy. Despite their relative small amounts, the care and independence frames were also worth further attention, considering that contemporary Chinese society is increasingly normalizing gender equality and females’ economic independence. While a spectrum of values and ideas co-exist, these posts reflect the gender equality wave of the current kaleidoscopic Chinese society.     

基于人本理念的饭店文化管理

人本理念是饭店文化的重要基础,而传统的饭店文化管理则常忽视人的作用,重制度而轻文化。本文对基于人本理念的饭店文化管理的原则、运作内容及其管理措施进行了分析。     

工会组织在企业安全生产中发挥作用的几点思考

企业安全事故危害性大,形势严峻,法律赋予了工会在企业安全生产中的权力和责任。如何发挥工会在企业安全生产中的重要作用,维护职工生命安全健康权,是工会要研究和解决的重大课题。     

Sleeping accidents in the elderly

Two cases of dangerous sleeping environments in the elderly are reported to demonstrate similarities and differences of these "sleeping accidents" to similar episodes that occur in infants and children. CASE REPORTS: An 87-year-old wheelchair-bound man with a history of dementia was found in his nursing home room hanging off the side of the bed from a vertical metal bar, and an 87-year-old woman with epilepsy, ischemic heart disease, and insulin-dependent diabetes mellitus was found in hospital wedged between an inflatable mattress and the bars of her bed. These cases demonstrate that, as in the very young, relatively poor coordination and strength in the elderly often with limited comprehension and ability to deal with dangerous environments may predispose to sleeping accidents. Significant underlying organic disease may, however, make determination of the precise lethal mechanisms difficult. Modification of beds should only be undertaken when safety issues have been carefully evaluated.     

产权式酒店运营中的产权信托分析

产权式酒店是投资者购买酒店客房产权,依分时度假方式与酒店管理者签订委托管理协议,获得限定的使用权限和经营收益的旅游房地产经营模式。产权式酒店之产权是一种弱化所有权属性的有期产权,在运营中存在"经济上"的所有权与"法律上"的所有权的分离,具有信托制度上的转换权能,本质上是一种不动产使用信托受益权。因此,应当完善信托登记制度,将产权式酒店的委托经营合同定性为信托合同,构建和完善产权式酒店的典型信托制度。     

论产品代言人侵权责任

产品代言人在从事代言行为过程中有独立的法律地位。对产品代言行为的法律调整不应该使其依附于虚假广告而仅具经济法意义,应在检讨我国相关立法的基础上使其受到侵权法之调整。产品代言人侵权责任应归属于产品责任这一特殊侵权行为范畴,并在匡正产品责任归责基点的前提下,使产品代言人与生产者、销售者一道承担连带责任。