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171.
Laurie Gheddar MS Marie‐Odile Batt MD Jean‐Sébastien Raul PhD Pascal Kintz PhD 《Journal of forensic sciences》2021,66(1):272-277
Testing for drugs in hair raises several difficulties. Among them is the interpretation of the final concentration(s). In a post‐mortem case, analyses revealed the presence of furosemide (12 ng/mL) in femoral blood, although it was not part of the victim's treatment. The prosecutor requested our laboratory to undertake an additional analysis in hair to obtain information about the use of furosemide. A specific method was therefore developed and validated to identify and quantify furosemide in hair by UHPLC‐MS/MS. After decontamination of 30 mg of hair, incubation in acidic condition, extraction with ethyl acetate, the samples were analyzed by UHPLC‐MS/MS. Furosemide was found in the victim's hair at 225 pg/mg. However, it was not possible to interpret this concentration due to the absence of data in the literature. Therefore, the authors performed a controlled study in two parts. In order to establish the basis of interpretation, several volunteers were tested (four after a single 20 mg administration and twenty‐four under daily treatment). The first part indicated that a single dose is not detectable in hair using our method. The second part demonstrated concentrations ranging from 5 to 1110 pg/mg with no correlation between dosage and hair concentrations. The decedent's hair result was interpreted as repeated exposures. In the case of furosemide analysis, hair can provide information about its presence but cannot give information about dosage or frequency of use. 相似文献
172.
目的建立测定涉毒人员毛发样本中硝甲西泮的液相色谱-质谱/质谱(HPLC-MS/MS)分析方法。方法对质谱主要参数进行优化,采用电喷雾多反应监测模式(MRM)测定不同浓度标准样品并建立标准曲线,通过准确度、灵敏度和实际案例检材的检验对方法进行评价。结果标准溶液最低检出限0.1ng/mL,线性范围宽,R2>0.999,空白毛发外添加标样回收率>80%。结论优化后的毛发样本中硝甲西泮的HPLC-MS/MS操作简便快捷,灵敏度高,重现性好,具备定性定量的适用性和可靠性。 相似文献
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用GC/ECD方法分析海洛因中毒尿液吗啡代谢物 总被引:2,自引:2,他引:0
目的 考查尿检材中海洛因的代谢物吗啡和单乙酰吗啡的液液萃取条件、三氟乙酰化和气相色谱电子捕获检测 (GC/ECD)条件。方法 以烯丙吗啡为内标 ,氯仿∶异丙醇 (9∶1)为液相萃取剂萃取尿中的吗啡和单乙酰吗啡 ,采用MBTFA衍生化 (三氟乙酰化 ) ,GC/ECD检测。结果 尿中加样相对回收率吗啡 89% ,单乙酰吗啡 75 % ,最小检测量吗啡 5 0ng ,单乙酰吗啡 10 0ng。通过实验兔的中毒实验 ,对尿检材进行了分析。 结论 所建立的萃取与检测方法分析海洛因中毒尿检材中的吗啡准确、灵敏 ,可用于海洛因的吸毒检验 相似文献
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Seda Gürkan 《Southeast European and Black Sea Studies》2018,18(1):107-125
This article analyzes the role of the European Parliament (EP) in Turkey–EU relations. More specifically, it explores the reasons why in practice EP’s role in promoting fundamental values of the European Union (EU) in Turkey remained largely limited. Drawing on the broader socialization literature, it concludes that a combination of factors related to the socializer (EP) and to the socializee (Turkey) limits the EP’s effectiveness to emerge as a normative actor in its relations with Turkey. In particular, the study points to the mismatch of values promoted by the EP and those embraced by the Turkish political elite as the real obstacle that prevents any socialization mechanism from being triggered. 相似文献
180.
Aqil Shah 《英联邦与比较政治学杂志》2017,55(4):489-508
In June 1975, Indian Prime Minister Indira Gandhi imposed Emergency rule, capping off a decade long process of the ‘deinstitutionalisation’ of the founding Congress party, increased social mobilisation, and political instability – factors generally considered conducive to military intervention in politics. Organisational factors encouraging military praetorianism, such as military involvement in internal security missions and the growth of ‘rival’ paramilitary institutions, accompanied this process of political decay. But the Indian military did not exploit this window of opportunity. This article offers an institutionalist explanation of the military’s political restraint based on two factors. First, institutionalised mechanisms of civilian control, forged during the critical juncture following independence, insulated the military from politics and the politicians from the military despite the weakening of the political system under which these were created. Second, military internalisation of the norm civilian supremacy, continually reinforced via professional socialisation processes, acted as an internal barrier to military role expansion. 相似文献