Content of Humic Acid in Compound Fertilizer of Humic Acid measured by Volumetric Method
容量法测定腐植酸复肥中腐植酸含量
[Methods] Volumetric method and ion chromatography were applied to determine the content of chloride in water samples;SAS software was used to conduct t-test on the result.
目的比较容量法(硝酸银容量法、硝酸汞容量法)和离子色谱法测定水中氯化物的差异,探讨其优缺点。
The determination conditions of Mn and Zn with volumetry were investigated.
探索了用容量法测定微量元素叶面喷施肥中锌、锰含量的分析条件 :样品经硝酸和高氯酸处理后 ,用EDTA、氯化锌反滴定法测定锌、锰合量 ,再用硝酸铵法测定锰含量 ,总量减去锰含量即得锌含量。
After decomposition of Mn-Ag concentrates and raw Ag powder samples with HCl-HNO_(3)-H_(2)SO_(4), Ag in the sample solutions was determined by KSCN-volumetry.
对某地锰银精矿及冶炼半成品———粗银粉,采用湿法溶样后,直接采用硫氰酸钾容量法测定Ag,对w(Ag)为0。
A standard volumetry for determination of cobalt in cobaltous oxalate was studied and improved.
对测定草酸钴中钴含量的容量法进行了改进。
The influencing factors of the uncertainty of measurement result for uranium in uranium ore by volumetric analysis method were discussed.
分析了容量法测定铀矿石中铀含量测量不确定度的影响因素。
FeCl_3 - K_2 Cr_2O_7 volumetric analysis is used for the determination of metal Ferrum in vanadium residue, which abstains from the use of mercury, simplifies device, improves the speed of analysis.
采用三氯化铁一重铬酸钾容量法测定钒渣中的金属铁的含量,消除了汞害,简化了装置,提高了分析速度,适于工业分析。
This paper introuduced to use volumetric analysis to determine the microamount calcium and magnesium in sodium sulfate by diminishing the affect of iron(Ⅲ), and validated the reliability of this method.
提出采用沉淀分离法消除Fe3 + 等离子的干扰 ,用容量法来测定Na2 SO4中微量的钙、镁含量 ,并验证了该方法的可靠
The determination methods of calcium by EDTA titration were compared experimentally.
该法适用于锂钙质量比≤1的天然水、地下水和卤水样品中钙的容量法测定。
We test the precipitate in capacity method and weight method respectively,using (NH_4)_2HPO_4 as the standard sample.
以喹钼柠酮作为沉淀剂,在酸性介质中,与样品中的正磷酸根反应生成黄色磷钼酸喹啉沉淀,对该沉淀分别用容量法和重量法进行测定,测得样品中w(磷)为40%～48%。
The zinc content in the butter of zinc tin powder was determined by EDTA volumetric method.
采用EDTA容量法测定氧化锌锡粉末中的锌含量。
This paper discusses the effects of sample resting when precipitating agent is added on experiment results by using EDTA volumetric method for the determination of SO 2- 4 in water.
对EDTA容量法测定水中硫酸根时 ,对加入沉淀剂后样品静置时间对测定结果的影响进行了研究。
In the determination of the aluminum content in iron ore by EDTA volumetric method,the interferential elements must be removed in advance.
用EDTA容量法测定铁矿石中的铝含量前必须先分离除去干扰元素,传统的分离方法须分有机试剂萃取、弱碱分离和强碱分离3步进行,流程比较复杂。
Thallium--Determination of thallium content--EDTA volumetric method
GB/T2592.10-1981铊中铊量的测定(EDTA容量法)
Liquid chlorine for industrial use--Determination of chlorine content by gas-volumetric method
GB/T5139.1-1985工业用液氯容量法测定氯含量
Content of Humic Acid in Compound Fertilizer of Humic Acid measured by Volumetric Method
容量法测定腐植酸复肥中腐植酸含量
Determination of Aluminium in Zinc Alloy by EDTA Titrimetry
EDTA容量法测定锌合金中的铝量
Methods for chemical analysis of lead concentrates--The Na2EDTA volumetric method for the determination of lead content
GB/T8152.1-1987铅精矿化学分析方法Na2EDTA容量法测定铅量
Methods for chemical analysis of tungsten concentrates--The EDTA volumetric method for the determination of calcium content
GB/T6150.6-1985钨精矿化学分析方法EDTA容量法测定钙量
Methods for chemical analysis of copper concentrates--The EDTA-volumetric method for the determination of lead content
GB/T3884.8-1983铜精矿化学分析方法EDTA容量法测定铅量
Methods for chemical analysis of copper concentrates--The EDTA-volumetric method for the determination of zinc content
GB/T3884.13-1983铜精矿化学分析方法EDTA容量法测定锌量
Methods for the chemical analysis of ironores--The volumetric method for the determination of phosphorus content
GB/T6730.20-1986铁矿石化学分析方法容量法测定磷量
Methods for chemical analysis of chromium metal--The EDTA volumetric method for the determination of iron content
GB/T4702.4-1984金属铬化学分析方法EDTA容量法测定铁量
Methods for chemical analysis of ferroboron--The EDTA volumetric method for the determination of aluminium content
GB/T3653.4-1988硼铁化学分析方法EDTA容量法测定铝量
Methods for chemical analysis of chromium metal--The EDTA volumetric method for the determination of aluminium content
GB/T4702.6-1984金属铬化学分析方法EDTA容量法测定铝量
Methods for chemical analysis of arsenic--The potassium bromate volumetric method for the determination of arsenic content
GB/T4373.1-1984砷化学分析方法溴酸钾容量法测定砷量
Methods for chemical analysis of ferroniobium--The EDTA volumetric method for the determination of aluminum content
GB/T3654.10-1983铌铁化学分析方法EDTA容量法测定铝量
Methods for chemical analysis of ferrosilicon-the EDTA velumetric method for the determination of aluminium content
GB/T4333.5-1997硅铁化学分析方法EDTA容量法测定铝量
Methods for chemical analysis of lead concentrates--The Na2 EDTA volumetric method for the determination of zinc content
GB/T8152.2-1987铅精矿化学分析方法Na2EDTA容量法测定锌量
Method of test for nitric acid content in concentrated nitric acid--Volumetry
GB/T4147.1-1984浓硝酸中硝酸含量的试验方法容量法
Method of test for nitrous acid content in concentrated nitric acid--Volumetry
GB/T4147.2-1984浓硝酸中亚硝酸含量的试验方法容量法