1) magnesium nitrate dry cineration
硝酸镁干法灰化
1.
ICP experiment conditions for pretreating samples with magnesium nitrate dry cineration were studied.
对硝酸镁干法灰化前处理样品条件及 ICP仪实验条件进行了优化,建立了氢化物发生与发射光谱联用技术对原油中的微量砷进行测定的方法。
2) magnesium nitrate method
硝酸镁法
1.
After comparing the domestic process with overseas process, the Concentrated Nitric Acid Plant finally selected the double-pressurizing method for diluted nitric acid, and the magnesium nitrate method for concentrated nitric acid.
本文针对2003年开始实施的兰州石化15万吨/年浓硝酸项目,在对比国内外各种硝酸生产工艺的基础上,确定双加压法生产稀硝酸,硝酸镁法生产浓硝酸作为本项目的主要工艺路线,并对流程中的主要设备和催化剂进行了优化,分析了国产机组存在的问题,通过引进来机组来提高本装置的技术水平;在催化剂方面以目前先进的二元针织网取代三元平织网。
3) concentrated nitric acid production by using nitre and mag-nesium
硝镁法浓硝酸
4) dry ashing
干法灰化
1.
In the present experiment,most plant samples ashed by conventional dry ashing were solved completely when ascorbic was added.
在常规的干法灰化中,采用Vc助溶,大多数植物样品都能获得清亮的待测溶液。
2.
A method has been studied for the determination of cadmium in arenga pinnata (Wurmb) Merr flour by dry ashing-graphite furnace atomic absorption spectrometry(GFAAS) method, and the optimum condition of determination by GFAAS was studied.
研究建立干法灰化消化样品,石墨炉原子吸收光谱法检测桄榔粉中痕量镉的方法;并对石墨炉原子吸收光谱法的测定条件进行优化。
3.
By dry ashing instead of wet digestion,the interference of pH and perchlorate were resolved.
182-2003中样品处理方法做了改进,用干法灰化代替湿法消解,解决了国标方法中由于pH值和高氯酸对显色反应的影响造成检测结果不准确的问题。
5) dry ashing
干灰化法
1.
Ten plant samples from three Mn mine wastelands in Guangxi were collected and determined for Pb,Cd and Cu concentrations by using acid digestion and dry ashing pretreatment respectively.
用酸消解法与干灰化法分别处理广西3个锰矿废弃地的10种植物样品,并用原子吸收分光光度计测定其Pb、Cd和Cu的含量。
6) magnesium nitrate
硝酸镁
1.
Control of impurity in the magnesium nitrate solution and application of filter-press method in the concentrated nitric acid production;
硝酸镁溶液中杂质的控制及压滤法的应用
2.
Revultex was dissociated by using magnesium nitrate and nitric acid , sulfate formed at the same time , which deposited with reacting with barium chloride ,thus the sulfur was determinated quantitatively.
采用硝酸镁和硝酸消解有机质、固定硫化胶乳中的硫元素,再与氯化钡反应生成硫酸钡沉淀,以此检测硫化胶乳的硫含量。
补充资料：干法灰化
分子式：
CAS号：
性质：分析化学中使试样所含有机物质受到破坏，并使痕量待测物质进行富集的一种化学处理技术。将试样放入容器内，直接在空气中加热到400～800℃，灰化残渣溶解于溶剂中。此法不能用于易挥发性元素，否则造成严重损失。由于不引入试剂，可免于外来物质对测定的干扰。
CAS号：
性质：分析化学中使试样所含有机物质受到破坏，并使痕量待测物质进行富集的一种化学处理技术。将试样放入容器内，直接在空气中加热到400～800℃，灰化残渣溶解于溶剂中。此法不能用于易挥发性元素，否则造成严重损失。由于不引入试剂，可免于外来物质对测定的干扰。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条