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determination of iron     
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  测定铁
     Results:The linear range of the determination of iron was 0.050~1.20 μg/25 ml. The detection limit was 3.2×10~(-11) g/ml.
     结果:测定铁离子的线性范围:0.050~1.20μg/25 m l,检测限:3.2×10-11g/m l。
短句来源
     Determination of Iron(Ⅲ) with the New Chromogenic Reagent 2-(H-Acidazo)-4,5-Dinitrophenol
     新型显色剂2-(H-酸偶氮)-4,5-二硝基苯酚测定铁(Ⅲ)
短句来源
     Studies on a New Series of Azo ReagentⅡ . Spectrophotometric Determination of Iron( Ⅲ ) Using 2- [ ( 8-Hydroxy-5-sulf o- 7-quinoline )azo]- 1-hydroxy-8-amino-3,6-naphthalenedisulfonic Acid
     一类新偶氮试剂的研究——Ⅱ.试剂2-(8′-羟基喹啉-5′-磺基-7′-偶氮)-1-羟基-8-氨基萘-3,6-二磺酸光度法测定铁(Ⅲ)
短句来源
     Spectropkotometric determination of iron(Ⅲ)using a novel reagent 2-(2′,4',6'-trihydroxyphenylazo)-benzenearsonic acid
     以2─(2′,4',6'─三羟苯基偶氮)苯胂酸光度法测定铁(Ⅲ)
短句来源
     2-(3,5-Dibromo-2-pyridylazo)-5-diethylaminophenol as a Complexometric Titration Indicator for the Continuous Determination of Iron and Aluminium
     2-(3,5-二溴-2-吡啶偶氮)-5-二乙氨基苯酚作络合滴定指示剂连续测定铁和铝
短句来源
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  铁的测定
     The method was applied to the determination of iron in Fe 2O 3 sample, RSD is 1.8%~2.2%, the recovery is 99.2%~102.6%.
     该法直接用于Fe2 O3 样品中铁的测定 ,测定结果的相对标准偏差为 1.8%~ 2 .2 % ,回收率为 99.2 %~ 10 2 .6 %。
短句来源
     Photometric determination of iron in ore samples by this method with satisfactory selectivity and precision(RSD=1.22%-4.2%, recovery: 97.4%-99%).
     本法选择性好 ,精密度高 (RSD %=1 2 2 %~ 4 2 % ) ,回收率 97 4%~ 99% ,用于矿石中铁的测定 ,结果满意。
短句来源
     Beer's law is obeyed in the range of 1.0~5.0 μg/mL. This method can be applied to the determination of iron in biological sample with satisfactory results.
     mol-1.cm-1.铁含量在0.1~5.0μg/mL内符合比尔定律,方法用于生物样品中痕量铁的测定,结果令人满意.
短句来源
     It is based on the reaction of streptomycin sulfate with iron in NaH 2PO 4-H 3PO 4 buffer solutions(pH=3.0). The linear range of iron is 1.4~4.0 μg·ml -1 .The method has been applied to the determination of iron in aluminium sulfate.
     在NaH2 PO4 —H3PO4 的pH =3 .0的缓冲溶液条件下 ,链霉素与Fe3+ 生成紫红色络合物 ,其络合比为 3 :1,最大吸收波长为 490nm ,测铁的线性范围为 1.4~ 4.0 μg·ml- 1 ,应用于硫酸铝中铁的测定 ,结果满意 .
短句来源
     Oxidizing air-acetylene flame is adopted wavelegth 248. 3nm is selected 24 kinds of metal elements did not affect the determination of iron. Characteristic mass is 0. 075ng/mL /1% A,DL (3S) is 0.014μg/mL , RSD (n=11) is 0. 72%, recovery ration is 98.1%-103.3%.
     采用氧化性空气/乙炔火焰,于248.3nm波长进行测定,24种金属离子不干扰铁的测定,其特征浓度为0.075μg/mL1%吸收,DL(3S)为0.014μg/mL,RSD(n=11)为0.72%,标准回收率为98%—103%。
短句来源
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  测定微量铁
     Micellar Solubilization Spectrophotometric Determination of Iron with Morin in the Presence of Tween 20.
     桑色素-吐温-20胶束增溶分光光度法测定微量铁
短句来源
     Determination of Iron by 5-Br-PADAP spectrophotometry
     5-Br-PADAP分光光度法测定微量铁
短句来源
     Catalytic spectrophotometric determination of Iron(Ⅲ) using Iron(Ⅲ)-KBrO_3- 2,4,6-trichloro chlorophosphonazo system
     三氯偶氮氯膦-铁(Ⅲ)-溴酸钾催化光度法测定微量铁
短句来源
  测定铁的
     Study on phase-separation spectrophotometric determination of ironⅡ by liquid-liquid extraction with FeⅡ-5-Br-PADAP-microemulsion system
     FeⅡ-5-Br-PADAP-微乳液析相液-液萃取光度法测定铁的研究
短句来源
     Study on Determination of Iron with Primay-Secondary Wavelengthes Computation Spectrophotometry(Ⅰ)──Fe(Ⅱ)-phen determination iron in the water by the chromogenic reaction system
     主次双波长计算光度法测定铁的研究(Ⅰ)──phen-Fe(Ⅱ)显色体系测定水中铁
短句来源
     Study on determination of iron in pyrite samples by Enhancement Effect of Alizarin yellow R-TritonX-100 system
     茜素黄R-TritonX-100体系测定铁的研究
短句来源
     Study on Flow Injection Spectropho-tometric Determination of Iron Ⅱ.The Micel-lar System of Fe(Ⅲ)-CAS-Surfactant
     流动注射光度法测定铁的研究Ⅱ.Fe(Ⅲ)-CAS-SAS胶束体系
短句来源
     Study of Determination of Iron With Primary-Secondary Wavelengths Computation——phen-Fe(Ⅱ) chromogenic system determinaced iron in water
     主次双波长计算光度法测定铁的研究——phen—Fe(Ⅱ)显色体系测定水中铁
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  determination of iron
A simple method for the selective and sensitive kinetic spectrophotometric determination of iron (II) is described.
      
Testing and Determination of Iron(II, III) as an Adsorbate of Iron(II) Phenanthrolinate by Chromaticity Measurements
      
A procedure was developed for the determination of iron in solutions with a detection limit of 2.5 μg/L.
      
A scale was proposed for the visual determination of iron(II) at concentrations down to 0.4 μg/L.
      
Rapid Test Determination of Iron(II) in Aqueous Media by Reagent Indicator Paper
      
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