1.
ANALYSIS METHOD RESEARCH OF NITROGEN CALCIUM AND LITTLE SULPHUR SHOOTSTHE SPECTRUM IN THE PIPELINE STEEL
管线钢中氮、钙及痕量硫发射光谱分析方法研究
2.
Chemical products for industrial use-General method for determination of traces of sulfate by reduction and titrimetry
GB/T12737-1991化工产品中痕量硫酸盐测定的通用方法还原滴定法
3.
Determination of Trace Sulfur and Phosphor in Low Alloy Steel by Ion Chromatography (IC) with Cation Exchange Pre-separation
阳离子交换预分离——离子色谱法测定低合金钢中痕量硫、磷
4.
Oxidation of Methyl Red with Potassium Persulfate
过硫酸钾氧化甲基红催化光度法测定痕量银
5.
Experimental Study on Simultaneous Removal of Trace Selenium and Arsenic in Flue Gas Desulphurization Within Medium Temperature Range;
中温脱硫过程联合脱除痕量硒、砷的实验研究
6.
Catalytic-Kinetic Spectrophotometric Determination of Trace Silver with a System of Silver-potassium Persulfate-safranine T;
银—过硫酸钾—藏红T体系催化光度法测定痕量银
7.
Determination of trace chloride and sulfate in chromic anhydride by ion chromatography
离子色谱法检测铬酐中的痕量氯离子和硫酸根
8.
DITHIZONE EXTRACTION-ATOMIC ABSORPTION SPECTROGRAPHIC DETERMINATION OF TRACE CADMIUM, ZINC, LEAD, COPPER, NICKEL, IRON AND MANGANESE IN WATER
双硫腙萃取-火焰原子吸收光谱法测定水中痕量镉、锌、铅、铜、镍、铁与锰
9.
Resonance Rayleigh Scattering Method for the Determination of Trace Amounts of Molybdenum with Thiocyanate basic Triphenylmethane Dye Systems
共振瑞利散射法测定硫氰酸盐-碱性三苯甲烷染料体系中的痕量钼
10.
Study on Solid Phase Extraction of Trace Mercury Using Dithizone Modified Nano-sized TiO_2;
双硫腙修饰纳米二氧化钛固相萃取水中的痕量汞
11.
Determination of Arsenic(Ⅲ) by Resonance Rayleigh Scattering Method with Thionin-I_3~--PVA
硫堇-I_3~--PVA共振瑞利散射法测定环境水样中痕量砷(Ⅲ)
12.
Matrix solid-phase dispersion and high performance liquid chromatography for the determination of phorate and terbufos in sugarcane
基质固相分散-高效液相色谱法测定甘蔗中痕量甲拌磷和特丁硫磷
13.
Determination of Trace EDTA by Inhibition Kinetic-spectrophotometry in A H_2SO_4 H_2O_2-Rhodamine B System
硫酸-H_2O_2-罗丹明B-体系阻抑动力学光度法测定痕量EDTA的研究
14.
Although there has been long-term producers, the occurrences are generally small, many consisting of mere showings of sulfide.
虽然有些地区长期产镍，但产量很少，其中有许多地区只有硫化物的痕迹。
15.
Spectrofluorometry for the Determination of Trace Amounts of Toxic Metal Elements in Environment with Derivant of Aminothiourea and Its Application;
氨基硫脲类试剂与环境中痕量有毒金属元素荧光反应的研究及其应用
16.
STUDY ON SEPARATION AND CONCENTRATION----GRAPHITE FURNACE ATOMIC ABSORPTION SPECTROMETRY IN DETERMINATION OF ARSENIC IN HIGH PURITY SULFUR;
分离富集——石墨炉原子吸收光谱法测定进口高纯硫磺中痕量砷的方法研究
17.
Simultaneous separation,concentration and determination of trace lead and cadmium with dithizonic chelating resin by flame atomic absorption spectrometry
双硫腙螯合型树脂同时分离富集-火焰原子吸收光谱法测定痕量铅和镉
18.
A trace element.
痕量元素，微量元素