HUANG Yuanwei HAN Yong SUN Lanxiang XU Zhiqiang SHI Shengtai(S.T.Shih) Shanghai Institute of Metallurgy
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Academia Sinica
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Shanghai
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China HUANG Yuanwei
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Associate Professor
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Shanghai Institute of Metallurgy
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Academia Sinica
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865 Changning Road
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Shanghai
,
China
金属学报(英文版)
The effects of Y,Ce and La on the sulfidation of alloy Fe-25Cr-40Ni have been investigated. The sulfidation rate of the alloys with RE more than 0.1 wt-% is lower than that of the base alloy.The addition of Y is more effective than La and Ce in lowering the sulfidation rate. Based on the analyses of the structure and composition of the sulfide seales,the sulfidation mechanism of the alloys with RE has been proposed.
关键词:
sulfidation
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null
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null
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吴嘉嘉
,
曹喆
环境化学
本文介绍了用安捷伦7890B/7000C气相色谱-三重串联四极杆质谱联用仪(GC/MS/MS)以及农残和环境污染物MRM数据库创建的一针进样同时监测865种农残和环境污染物的分析方法.使用该方法分析了多种常见植物源性食品,包括玉米、青菜、西兰花、韭菜、橘子、番茄、大蒜.实验结果证明,安捷伦7000CGC/MS/MS不仅能够满足食品安全风险评估对大量样品当中众多化合物进行快速检测的高通量分析需求,而且在极端分析条件下仪器依然具有优异的灵敏度和稳定性.而同一化合物多离子对的同时检测还保证了基质干扰多样化情况下的高选择性.
关键词:
三重串联四极杆质谱
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农残
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环境污染物
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植物源性食品
