搜索结果: 1-15 共查到“理学 Spectrophotometry”相关记录16条 . 查询时间(0.088 秒)
Precision Spectrophotometry at the Level of 0.1%
Precision Spectrophotometry Level
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2011/10/19
Accurate relative spectrophotometry is critical for many science applications. Small wavelength scale residuals in the flux calibration can significantly impact the measurements of weak emission and a...
Simultaneous determination of Cu(II) and Pd(II) as 4-phenylpiperazinecarbodithioate complex using H-point standard addition method and derivative spectrophotometry
Simultaneous determination of Cu Pd 4-phenylpiperazinecarbodithioate complex H-point standard addition method derivative spectrophotometry
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2010/10/15
A new, simple, inexpensive, and sensitive method for the simultaneous spectrophotometric determination of Cu(II) and Pd(II) by H-point standard addition method and derivative spectrophotometry is desc...
Simultaneous Determination of Albendazole and Praziquantel by Second Derivative Spectrophotometry and Multivariated Calibration Methods in Veterinary Pharmaceutical Formulation
Simultaneous Determination of Albendazole Praziquantel Multivariated Calibration Methods Veterinary Pharmaceutical Formulation
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2010/9/15
The simultaneous determination of albendazole (ABZ) and praziquantel (PZQ) was performed by different mathematical approaches: second derivative spectrophotometry (SDS), classical least squares, regre...
Multichannel spectrophotometry for analysis of organophosphate paraoxon in beverages
Acetylcholinesterase cholinesterase biosensing pesticides assay Ellman
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2010/10/14
Multichannel spectrophotometry was performed to assay for paraoxon in spiked beverages. A 96-well microplate was used for this purpose. The measuring protocol was based on inhibition of the enzyme ace...
The chemical composition of the galactic H II regions M8 and M17. A revision based on deep vlt echelle spectrophotometry
chemical composition vlt echelle spectrophotometry galactic H II
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2009/7/9
The chemical composition of the galactic H II regions M8 and M17. A revision based on deep vlt echelle spectrophotometry。
Chemical Abundances of NGC 5461 and NGC 5471 Derived from Echelle Spectrophotometry
NGC 5461 Echelle Spectrophotometry NGC 5471
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2009/6/11
Chemical Abundances of NGC 5461 and NGC 5471 Derived from Echelle Spectrophotometry。
THE DATA PROCESSING IN SOLAR SPECTROPHOTOMETRY
SOLAR SPECTROPHOTOMETRY DATA PROCESSING
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2009/4/23
THE DATA PROCESSING IN SOLAR SPECTROPHOTOMETRY。
Analysis of Carbaryl Pesticide Residues in Environmental Samples with Spectrophotometry
carbaryl 4,4'-methylene-bis-m-nitroaniline diazotisation method (DM) oxidation method (OM) spectrophotometry water and grain samples
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2007/12/19
摘要 A facile, rapid and sensitive spectrophotometric method was developed for the determination of carbaryl in its formulations, water and grain (rice and wheat) samples with newly synthesised reagent....
First- and Second-Derivative Spectrophotometry for Simultaneous Determination of Copper and Cobalt by 1-(2-Pyridylazo)-2-naphthol in Tween 80 Micellar Solutions
Copper Cobalt PAN Simultaneous Derivative spectrophotometry
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2010/4/19
1-(2-Pyridylazo)-2-naphthol (PAN) has been used for the simultaneous determination of copper and cobalt at trace levels. PAN at pH 1.89 forms red and green complexes with copper and cobalt, respective...
Application of Potassium Chromate-Diphenylcarbazide in the Quantitative Determination of Ascorbic Acid by Spectrophotometry
Ascorbic acid determination Spectrophotometry Potassium chromate Chromium-diphenyl-carbazide complex
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2010/4/21
A spectrophotometric procedure for the determination of ascorbic acid in pure form and in a number of pharmaceutical preparations and real samples has been developed that offers the advantages of simp...
Determination of Ascorbic Acid in Vegetables by Derivative Spectrophotometry
Ascorbic acid Vegetables Derivative spectrophotometry
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2010/4/22
Determination of ascorbic acid (AA) in garlic, green pepper and chestnut was performed by derivative spectrophotometry without using any pre-separation or background correction techniques. The method ...
The Simultaneous Determination of Quinoline Yellow (E-104) and Sunset Yellow (E-110) in Syrups and Tablets by Second Derivative Spectrophotometry
Dyes derivative spectrophotometry pharmaceutical products Sunset Yellow Quinoline Yellow
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2010/4/22
A very simple spectrophotometric method using measurements at zero-crossing wavelength is described for resolving binary mixtures of the food dyes, Sunset Yellow (E-110) and Quinoline Yellow (E-104). ...
Determination of Ternary Mixtures of Vitamins (B1, B6, B12) by Zero-Crossing Derivative Spectrophotometry
Derivative spectrophotometry Vitamins B1 B6 B12
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2010/4/22
A new method for determining ternary mixtures of vitamin B1, B6 and B12 using second derivative spectrophotometry is described. The procedure is accurate, nondestructive and does not require any separ...
Determination of Patent Blue V and Carmoisine in Gelatine Desserts By Derivative Spectrophotometry
Determination Patent Blue V Carmoisine Gelatine Desserts By Derivative Spectrophotometry
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2010/6/28
A first-derivative spectrophotometric method was developed for quantitative determination of two synthetic organic dyes, Carmoisine and Patent Blue V, which are under governmental regulations all over...
Characterization of the Particle Size and the Crystallinity of Certain Minerals by IR Spectrophotometry and Other Instrumental Methods—II. Investigations on Quartz and Feldspar
Crystallinity Feldspar Grinding Orthoclase Quartz
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2012/2/10
Infrared spectra of two minerals; Urkut quartz (Hungary) and a Swedish feldspar, of different origin with different physical characteristics and crystallinity were studied. Samples were taken after ap...