【摘 要】
:
安徽科研人员近期采用气相色谱法,研究了不同清洗方式对香菇中毒死蜱残留的去除效果。试验结果表明,日常使用的清洗方式,均可降低香菇中毒死蜱残留量,但去除效果存在差异,香
论文部分内容阅读
安徽科研人员近期采用气相色谱法,研究了不同清洗方式对香菇中毒死蜱残留的去除效果。试验结果表明,日常使用的清洗方式,均可降低香菇中毒死蜱残留量,但去除效果存在差异,香菇中毒死蜱残留去除率在0.32%~100.00%间。采用洗涤剂清洗,对于香菇中毒死蜱残留总体去除效果最好,即使对高残留量样品(64.49毫克/千克)也具有较好的去除效果,去除率达54.72%~56.69%。采用流动的自来水冲洗,对于较低残留量的样品(低于3.91毫克/千克),去除效果最好,而对高残留量样品,
Recently, Anhui researchers used gas chromatography to study the effects of different cleaning methods on the removal of chlorpyrifos residues in mushrooms. The results showed that daily cleaning method could reduce the residual amount of chlorpyrifos in mushrooms, but the removal efficiency was different. The residual removal rate of chlorpyrifos in mushroom was between 0.32% and 100.00%. The cleaning effect of chlorpyrifos was the best for the removal of chlorpyrifos residue in mushrooms. The removal rate of chlorpyrifos was 54.72% ~ 56.69%, even for high residue samples (64.49 mg / kg). Flushing with running tap water, removal was best for lower residual samples (below 3.91 mg / kg), whereas for high residual samples,
其他文献
Phenylseleno- and p-tolylsulfonyl substituted 1,3-dienes were conveniently prepared with high stereoselectivity by the elimination reaction of phenylseleno- and
An alternative method for anomeric deacetylation of fully acetylated carbohydrates has been developed using imidazole in methanol.
An alternative method for an
【内容摘要】体验式教学遵循学生的认知规律,将理论与情感融合起来,让学生在亲身经历活动中建构知识,提升能力,培养情感。本文主要阐述体验式教学在初中思想品德课中的作用、当前思品课体验式教学存在的主要问题,以及初中思想品德课体验式教学的有效策略。 【关键词】初中 思想品德 体验教学 实践 我们思想品德教学常有这样的困惑:学生接受我们传达的理念,能说得头头是道,但不能形成正确的道德认知,也不能转化为实
To characterize the complexing of Db relative to that of its homolog Pa, the extraction of protactinium with Aliquat 336 (methyl-tri-caprylyl ammonium chloride)
县域经济竞争力是区域竞争力的一 种,它泛指整合与配置县域资源使之具 有竞争优势的能力,包括自然优势力、 人才竞争力、政府能动力、产业竞争力、 企业竞争力、市场经济活力
患者男性68岁右眼红疼、流泪,右侧头痛,恶心呕吐,于91年2月18日就诊我科。右眼患白内障4年。全身检查未见异常。右眼视力30cm 指数,眼睑轻度痉挛。泪器正常。睫状充血,角膜
石墨烯是由碳原子共轭构成的具有单原子层厚度的二维晶体,是目前已知的最薄的材料,其发现者也因此获得2010年的诺贝尔物理学奖。石墨烯独特的二维片层结构赋予其许多独特的性
The Ag2S2 rings connect [Fe(NCS)5(DMF)]2- (DMF=N,N-dimethylformamide) octahedrons by bridging thiocyanates leading to a 3-D [Ag2Fe(SCN)5(DMF)]n framework. The F
在3月1日召开的全省2001年统计工作会议上,省统计局、省人事厅和省总工会联合表彰了统计系统评选出来的23个先进集体和28名先进个人代表,省人大副主任王恩科、副省省长苏森
[Objective] The purpose was to understand species and occurrence status of major fugal diseases in sugarcane cultivation areas of Guangxi in China, so as to pro