ERAS和减少产科和妇科阿片类药物的使用-选择题-答案

IF 3.9 2区医学 Q1 OBSTETRICS & GYNECOLOGY

Best Practice & Research Clinical Obstetrics & Gynaecology Pub Date : 2023-12-01 DOI:10.1016/j.bpobgyn.2023.102374

引用次数: 0

摘要

研究了Na、K、Rb、Cs与1,2-乙二醇和1,4-丁二醇的直接反应，以及Na、K与1,2-乙二醇的氨反应。通过元素分析、热重分析(TGA)和红外光谱对化合物进行了表征。结果表明，除了Cs与1,2-乙醇反应生成加合物Cs(OC2H4OH). hoc2h4oh外，只有一个羟基与金属反应生成M(OC2H4OH)或M(OC4H8OH)型化合物(M代表碱性金属)。用反应-溶液量热法测定了结晶状态下碱性金属离晶石的标准生成焓。在298.15 K下得到的结果如下:ΔfHmo (MOCxH2xOH, cr)/kJ·mol−1 = - 589.46.0 (NaOC2H4OH)、- 654.28.3 (NaO-n-C4H8OH)、- 615.17.4 (KOC2H4OH)、- 679.97.7 (KO-n-C4H8OH)、-609.83.1 (RbOC2H4OH)和- 1091.4±6.3 (CsOC2H4OH·HOC2H4OH)。将这些结果与文献中其他醇氧化合物的值进行比较，并结合辅助值，根据Kapustinskii方程推导出MOCxH2xOH化合物的一致晶格能。这样就可以估计一些未测量到的溶解气的生成焓。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Best Practice & Research Clinical Obstetrics & Gynaecology 医学-妇产科学

CiteScore

9.40

自引率

1.80%

发文量

113

审稿时长

54 days

期刊介绍： In practical paperback format, each 200 page topic-based issue of Best Practice & Research Clinical Obstetrics & Gynaecology will provide a comprehensive review of current clinical practice and thinking within the specialties of obstetrics and gynaecology. All chapters take the form of practical, evidence-based reviews that seek to address key clinical issues of diagnosis, treatment and patient management. Each issue follows a problem-orientated approach that focuses on the key questions to be addressed, clearly defining what is known and not known. Management will be described in practical terms so that it can be applied to the individual patient.