Synthesis of magnetic graphene composites for preconcentraton trace amounts of malachite green and crystal violet from water

Micro & nano letters

article

Yaping Zhong¹  Xue Wang¹  Yu He¹  Yili Ge¹  Gongwu Song¹ 

[1] Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University;Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, College of Chemistry and Chemical Engineering, Hubei University

关键词: nanocomposites;    graphene;    silicon compounds;    dyes;    adsorption;    nanofabrication;    nanomagnetics;    water pollution;    graphene-silica magnetic nanocomposites;    reusable adsorbents;    preconcentraton trace amounts;    malachite green;    crystal violet;    dye pollutants;    adsorption;    reuse experiments;    regeneration experiments;    water samples;    environmental sciences;    material sciences;    C-SiO2;   

DOI  :  10.1049/mnl.2015.0122

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

Background and Objective: Subclavian vein (SV) catheterization via infraclavicular approach is routinely done for multiple uses in operating rooms as well as in intensive care units in selected patients. The aim of this study was to evaluate the influence of shoulder position on central venous catheter (CVC) tip location during infraclavicular subclavian approach. Methodology: A prospective observational study was conducted on 60 patients and included American Society of Anesthesiologist (ASA) physical status 1 and 2 patients in whom CVC was planned. Catheters were introduced either in neutral shoulder position or the shoulder was lowered during venipuncture and guide wire insertion. A post-operative chest x-ray was done to note any complications and catheter tip malposition. Results: Demographic data was comparable between the two groups with respect to age, gender and weight. (P > 0.05). In one case in Group A, and two cases in Group B there was failure to puncture the vein but this was statistically insignificant (P = 0.554). Failure to thread the guidewire was seen in one case in each group with no statistical significance (P > 0.05) Statistical difference was noted in successful placement of CVC tip between the two shoulder position (P = 0.025).

【 授权许可】

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