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95篇 您的检索式:作者名="Desmarchelier"
    题名 作者 年代 出处 被引量
1顶空气相色谱法测定小麦中熏蒸剂氰及其代谢物氰化氢的残留量显示文摘采用溶剂顶空毛细管气相色谱-氮磷检测器(NPD)建立了熏蒸剂氰(C2N2)及其代谢物氰化氢(HCN)在小麦中残留的分析方法。在气相与液相体积比(β)为4时,采用GS-Q大孔毛细管色谱柱和进样60μL顶空气体,可提高C2N2和HCN的分离效果和灵敏度。以质量分数为50%的磷酸作溶剂,在25℃下平衡4 h,C2N2和HCN在液相与气相间的分配系数(k)分别为0.44和48.82。平衡温度和基质对C2N2和HCN挥发的影响存在差异,而盐化效应的影响较小。用50%的磷酸提取熏蒸过的小麦72 h,释放至顶空的C2N2和HCN的量最大,用添加标准品的小麦作标准可评价熏蒸小麦中C2N2和HCN的残留量。C2N2和HCN标准曲线的线性范围分别在质量浓度为1.0~500μg/L和1.2~500μg/L之间,相关系数(R2)分别为0.999 7和0.999 8,相对标准偏差分别为4.6%和7.4%,检出限(LOD)分别为0.032和0.145 mg/kg,定量限(LOQ)分别为0.107和0.483 mg/kg。方法操作简单、灵敏度高、干扰少,适用于小麦中C2N2和HCN残留量的检测。李保同 曾鑫年 任永林 J M DESMARCHELIER 2011农药学学报2011,13,6:8
2吹扫捕集气相色谱法分析土壤中熏蒸剂氰与氰化氢残留量显示文摘采用吹扫捕集气相色谱法建立了土壤中熏蒸剂氰和氰化氢的分析方法,对土壤中氰和氰化氢预处理的吹扫温度、吹扫时间和吹扫载气(N2)流速进行了优化。最佳吹扫参数为:以10%H2SO4溶液作溶剂、吹扫温度80℃、吹扫时间60 min和吹扫载气(N2)流速40 mL.min-1。氰和氰化氢在0.2~10 mg.L-1质量浓度范围内线性关系良好,相关系数(r2)分别为0.999 1和0.998 3。在优化条件下,土壤中氰和氰化氢的平均回收率分别为95%和96%,相对标准偏差分别为3.6%和5.2%,检出限(S/N=3)分别为0.012、0.021 mg.kg-1,定量下限(S/N=10)分别为0.040、0.070 mg.kg-1。用100 mg.kg-1氰熏蒸土壤48 h,氰及其降解产物氰化氢在土壤中的残留量分别为0.32 mg.kg-1和5.68 mg.kg-1。该方法简便快速,精密度与准确度均符合要求,适用于土壤中氰和氰化氢残留量的检测。李保同 曾鑫年 任永林 DESMARCHELIER J M 2012分析测试学报2012,31,2:5
3顶空色谱法测定土壤中氰和氰化氢残留量显示文摘氰(C2N2)是一种具有替代溴甲烷潜力的新熏蒸剂,建立土壤中C2N2及其降解产物氰化氢(HCN)的标准检测方法具有较重要的意义。本文采用溶剂顶空毛细管气相色谱-氮磷检测器(NPD)建立了熏蒸剂C2N2和HCN在土壤中的分析方法,优化了土壤中C2N2和HCN预处理的顶空参数,并通过了方法的精密度、检出限和定量限等质量控制参数的验证实验。结果表明,用30%H2SO4溶液作提取溶剂、顶空平衡温度50℃和顶空平衡时间0.5 h为最佳的顶空方法参数;在0.1~10 mg kg-1的质量浓度范围内,C2N2和HCN的浓度与色谱峰面积线性相关系数均大于0.99。采用该方法测定土壤中C2N2和HCN的相对标准偏差(RSD)分别为4.58%和6.32%(n=5),检出限(LOD)分别为0.016 mg kg-1和0.028 mg kg-1(S/N=3),定量限(LOQ)分别为0.053 mg kg-1和0.093 mg kg-1(S/N=10)。该方法操作简单、灵敏度高、干扰少,适用于土壤中C2N2和HCN残留量的检测。李保同 曾鑫年 任永林 Desmarchelier J M 2012土壤学报2012,49,6:4
4Parity violation in chiral structure creation under femtosecond laser irradiation in silica glass?显示文摘The paper addresses the creation of circular optical properties from a femtosecond laser light beam with a linear polarization in an achiral material(glass)under an orthogonal incidence.In this situation,all aspects of the experiment are achiral and therefore should not give rise to chiral property creation.From that observation,we propose an interpretation that involves the action of a light-induced torque on the matter carrying a light-induced dielectric moment.We found that a direct current(DC)electric field could be produced in the lattice by the femtosecond laser in our conditions and that a non-collinear dielectric moment is created by a nonlinear effect between the DC electric field and the stress field due to the transformation of the material.We reveal that it is possible to break the chiral symmetry of glass using an intense,ultrashort laser light pulse.Bertrand Poumellec Matthieu Lancry Rudy Desmarchelier Evelyne Hervé Bernard Bourguignon 2016Light(Science & Applications)2016,5,1:2
5Natural levels of dimethyl sulfide in rough rice and its products显示文摘Ren Y L Desmarchelier J M Phillip W 2001Journal of Agricultural and Food Chemistry2001,49,:1
6Isolation and characterization of integron-containing bacteria without antibiotic selection显示文摘Barlow RS Pemberton JM Desmarchelier PM 2004Antimicrob Agents Chemother2004,48,3:1
7Cancer chemopreventive and an- tioxidant activities of pterosUlbene, a naturally occurring an- alogue of resveratrol 显示文摘Rimando AM Cuendet M Desmarchelier C Mehta RG Pezzuto JM Duke SO 2002J Agric Food Chem2002,50,12:1
8Isolation and characterization of integron-containing bacteria without antibiotic selection显示文摘Barlow R S Pemberton J M Desmarchelier P M 2004Antimicrob Agents Chemother2004,48,3:1
9Simultaneous quantitative determination of melamine and cyanuric acid in cow' s milk and milk-based infant formula by liquid chromatography-electrospray ionization tandem mass spectrometry 显示文摘Desmarchelier A Guillamon-Cuadra M Delatour T 2009Journal of Agricultural and Food Chemistry2009,57,16:1
10Releasw of fumigant residues from grain by microwave irradiation 显示文摘Ren Y L Desmarchelier M J 1998Journal of AOAC International1998,81,3:1
11A PCR specific for Escherichia coli O157 based on the rfb locus encoding O157 lipopolysaccharide显示文摘 Bilge SS Fegan N 1998J Clin Microbiol1998,36,6:1
12Autologous chondrocyte implantation for traumatic full- thickness cartilage defects of the knee in 14 patients: 6-year functional outcomes显示文摘Viste A Piperno M Desmarchelier R 2012Orthop Traumatol Surg Res2012,98,7:1
13Ethyl formate, formic acid and ethanol in air, wheat, barley and suhanas: analysis of natural levels and fumigant residues 显示文摘Desmarchelier J M Johnston F M 1999Pestic-sci1999,55,8:1
14Ethyl formate as a fast fumigant for disinfestations of sampling equipment at grain export terminals 显示文摘Allen S E Desmarchelier J M 2000Australian Post harvest Technical Conference2000,,:1
15Cancer chemopreventive and antioxidant activities of pterostilbene,a naturally occurring analogue of resveratrol显示文摘Rimando A M Cuendet M Desmarchelier C 2002J Agric Food Chem2002,50,12:1
16Release of fumigant residues from grain by microwave irradiation 显示文摘Ren Y L Desmarchelier J M 1995Journal of the Association of Official Analytical Chemists International1995,81,:1
17A phenotypic and genetic study of sucrose nonferrnenting strains of Vibrio mimicus and Vibrio cholerae显示文摘Desmarchelier P Reicheh JL 1984Curt Microbiol1984,10,1:1
18In vitro suppression of fungal root pathogens of cereals by Brassica tussues显示文摘Kirkegaard J A Wong P T W Desmarchelier J M 1996Plant pathology1996,45,:1
19Knowledge intensive business services and long term growth 显示文摘Desmarchelier B Djellal F Gallouj F 2013Struc- tural Change and Economic Dynamics2013,25,6:1
20Antioxidant and Prooxidant Activities in Aqueous Extracts of Argentine Plants显示文摘C. Desmarchelier M.J. Novoa Bermudez J. Coussio G. Ciccia A. Boveris 1997Pharmaceutical Biology1997,,2:1
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