排序方式： 共有33条查询结果，搜索用时 15 毫秒
1.
应用电感耦合等离子体-原子发射光谱法（ICP-AES）对测定不锈钢材料中钴、铜、钒三种元素进行了试验研究。取样量为2.0mg/mL时,测定范围在125—2000μg/g之间,相对标准偏差（RSD,n=6）在1.8%—6.7%之间。 相似文献
2.
研究食盐中矿物元素的ICP-AEs分析方法.对商品食盐中钙、镁、钾、硅、锰、铁、锌、镉、铬、铅10个元素的分析谱线、内标、氯化钠的干扰、方法的精密度和准确度进行了讨论,并对温州市场上4种商品盐进行了矿物元素的测定. 相似文献
3.
ICP-AES测定多目标植物样品中的8种元素 总被引：1，自引：0，他引：1
齐耀德 《内蒙古科技与经济》2010,(10):54-54,56
文章采用IRIS Intrepid Ⅱ SXP ICP光谱仪,对地球化学植物样品中Pb、Cr、Ni、Mn、Cu、Zn、Co、Fe 8种元素的测量条件进行了探讨实验,并用所选的条件进行了大批量实际样品的测定。 相似文献
4.
用电感耦合等离子体发射光谱仪,对彝药三棵针中多种微量元素进行了分析测定。结果表明此种中药材中含有丰富的常量元素Ca.Mg.P.S和微量元素Fe.Zn.Cu.Mn,其含量与药理作用具有相关性。 相似文献
5.
采用微波消解-等离子体发射光谱法(ICP-AES)同时测定巢湖水体中的Cu、Mn、Pb、Cd、Zn.在逐级升压模式下,用HNO3和H2O2混合体系进行样品消解;优选出发射光谱仪的工作条件和待测元素的分析谱线,并讨论可能存在的干扰.实验结果表明,该法的检出限为0.2～3.5μg/L,RSD为0.75%～1.83%,加标回收率为97.4%～100.7%,结果令人满意. 相似文献
6.
锡矿中锡含量测定方法研究 总被引：1，自引：0，他引：1
赵宇 《湖北成人教育学院学报》2007,13(1):96-96,F0003
锡矿试样的还原分解,在测定的准确性、结果的重现性、操作的简易程度及分析速度等方面,均优于经典的过氧化钠熔矿方法。本研究工作选取锌粉—硼砂—硼酸为还原性熔剂,对熔样配比、熔剂总量、熔样时间等检测条件做了优化和选取,获取了满意的检测结果,能满足冶金地矿和科学实验对锡定量分析的要求。 相似文献
7.
ABSTRACTTwo Spiritelli attributed to Donatello have been extensively studied from a technical point of view, including X-radiography, alloy analysis, characterization of the core, and visual observations on the interior and exterior of the statues. The results of this technical study reveal how the two statues were cast and document the artist’s technical choices. These new insights offer additional information to address questions regarding their attribution, production context, and conservation history. First, the technical study confirmed that the statues were made by the same workshop and argues against the prior proposal of different attributions for the two figures. Second, the results strongly suggest that the statues have never been separated since they were taken off Luca Della Robbia’s Cantoria. Finally, study of the two Spiritelli offers further evidence of the heterogeneity and ingeniousness of Donatellos bronze artistic production, and contributes to the ongoing debate whether the artist himself was involved in the technical aspects of his sculpture. 相似文献
8.
The use of coloured pastes for inlaying marble and limestone wall panels is one of the ornamental techniques that were widely used during the Mamluk period in Egypt (1250–1516 AD). Red and black pastes from Qijmas El-Eshaqe mosque (1482 AD) in Cairo were studied to identify their main components. The study of the samples involved the identification of the pigments, additive materials and organic binding media. The study was performed using various analytical methods such as polarising microscopy (PLM), scanning electron microscopy equipped with energy dispersive X-ray analyser (SEM-EDX), inductively-coupled plasma (ICP-AES), X-ray diffraction (XRD) and Fourier-transform infrared spectroscopy (FTIR). These complementary analytical techniques provide precise identification of inorganic and organic substances used in the pastes. The results indicated that the red pigment is mainly obtained from red ochre containing hematite, whereas amorphous carbon (bone black and charcoal) was used to obtain the black colour. Both samples contain calcium sulphate, which was used to give some hardness to the pastes. Beeswax was used as an organic medium in both pastes. The study provides the information required for the conservation of the coloured paste ornaments. 相似文献
9.
探索了石油催化裂解催化剂中多种的金属元素含量用ICP-AES法同时快速测定的条件、再现性、回收率,并与AAS法进行分析比较.方法操作简便、准确可靠、回收率高和重复性好.方法测定各元素呈良好线性关系,相关系数为0.9991～1.0000,回收率在100 10%之间,RSD 2.0%,检出限为0.4～6.0 μg/L. 相似文献
10.
本文采用ICP-AES法测定钢铁中的Si、Mn、P、Cu、Ni、Cr、S.选择了仪器的最佳分析条件,并对方法的检出限、精密度和准确度进行了考察,建立的分析方法简单快速,对国家标准样品进行测定,结果令人满意. 相似文献