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原子吸收分光光度法与1,10-二氮杂菲分光光度法测定水中铁具有精密度高、准确度好的特点。用两种方法测定的已知样为0.8mg/L和1.0mg/L,经比较1,10-二氮杂菲分光光度法比原子吸收分光光度法精密度更高、准确度更好。 相似文献
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本文评述了金属及合金中磷的光度分析新近的发展状况,重点介绍磷钼蓝直接分光光度法,磷钼蓝萃取分光光度法,二元杂多酸-染料分光光度法和荧光分析法以及三元杂多酸-染料分光光度法。 相似文献
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随着人们对环境空气质量关注度的提高,空气中甲醛含量检测的需求越来越大。实验室内通常用酚试剂分光光度法和乙酰丙酮分光光度法测定环境空气中的甲醛。对两种测定方法的原理、精密度、准确度进行对比,结果表明:低溶度检测结果相差很小,但酚试剂分光光度法更适合;污染源、职业卫生相对溶度比较高的甲醛,用乙酰丙酮分光光度法测定更为准确。 相似文献
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1995 ̄1997年间铜的分光光度法分析概况已作了评述,内容包括:高灵敏、新有机显色剂、多元配合物、萃取光度法、动力学光度法、荧光及化学发光法、流动注射光度法、双波长光度法、析相光度法、β修正光度法、计算光度法、导数光度法及其它,引用文献81篇。 相似文献
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将火焰原子吸收分光光度法应用于铁矿的系统分析,成功地测定了全铁和氧化锰。提出了火焰原子吸收分光光度法测定铁矿中全铁和氧化锰的方法。本法简便、快速、准确。 相似文献
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综述了锑、铋分光光度法分析概况,内容包括高灵敏新有机显色剂、多元配合物,萃取光度法、动力学光度法、固相光度法、KI-硫脲光度法、氢化物发生光度法、激光光度法等,引用文献103篇。 相似文献
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本文介绍的5—Br—PADAP分光光度法可以代替孔雀绿分光光度法测定金属镉中的锑,前者较后者有许多优点。 相似文献
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正With the signing of"Letter of intention for Propelling Integration of Shandong Rare Earth Enterprises"between Shandong Province Commission Of Economy and Informatization,China IronSteel Research Institute Group("China Steel Institute"),and China Rare MetalsRare Earth Co.,Ltd("China Rare Earth"),the"Shandong Rare Earth Group"jointly set up by the 3 units thus broke surface.On August 9,reporters of the China Economic Herald learned from Shandong Province 相似文献
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正In the face of the current situation of the lost WTO dispute on rare earth,and cancellation of export tariff for partial rare earth products,efforts of regulation and integration on rare earth by the state government will again be tightened.Reporters of the Economic Information Daily recently learned from authoritative sources that relevant ministries are 相似文献
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正Last month,Chinalco signed framework agreement for strategic cooperation with Harbin Municipal Government in Harbin Xiong Weiping,Chairman of Chinalco,said that based on the strategic deployment to build world top-class mining company with the highest growth potential,Chinalco was now concentrating all efforts on making strategic transition and structural adjustment,strategic cooperation with the local governments where 相似文献
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《Baosteel Technical Research》2014,8(4)
正Baosteel Technical Research,a quarterly journal,which is issued domestically and abroad,is run and sponsored by Baosteel Group Corporation.Baosteel Technical Research mainly reports the achievements in technological innovation,academic research,new product development and industrial equipment improvement by Baosteel.It will continue to follow up on hot topics and serve the company’s technological development and progress.Its readers include experts in 相似文献