Đặt câu với từ "spectrophotometric"

1. Spectrophotometric Study of Anthocyan Copigmentation Reactions

2. An UV-spectrophotometric method for the determination of 2,2′-dicinchonic acid is described.

3. An infrared spectrophotometric method was used to determine the calcium bilirubinate and cholesterol contents in human gallstone.

4. That is, measurement must involve tristimulus Colorimetry, whether obtained by spectrophotometric or colorimetric techniques

5. A method for the preparation of tissues for the spectrophotometric test of DAO is described.

6. 3 A spectrophotometric method for the determination of trace boron in ferrosilicon alloy was proposed.

7. Absorption curves obtained from spectrophotometric data demonstrate the fading of the colour of the dyestuff with the time of exposure.

8. A procedure is described for the spectrophotometric determination of germanium using phenylfluorone in a sulphuric acid medium.

9. A hybrid spectrophotometric instrument utilizing absorption and fluorescence observations requires different cell parameters for optimal performance.

10. the equilibrium of sulfanilic acid with hydrogen ion was determined by spectrophotometric measurements at 25 and 15°C.

11. The 4-Arsono-2-nitrophenyl chromophore can serve as a versatile spectrophotometric probe of the surface structure of proteins

12. The equilibrium of orthanilic and metanilic acid with hydrogen ion was determined by spectrophotometric measurements at 25°C.

13. A spectrophotometric assay for urease was developed using glutamic dehydrogenase as an accesory enzym in a coupled test.

14. Following elution of the adsorbed elements by means of 2M nitric acid, these elements are determined by atomic absorption-spectrophotometric methods.

15. A spectrophotometric method was developed for determining micro quantities of rubidium and cesium in mixtures and in the presence of other alkali metals.

16. Their acid-base and metal-ligand equilibrium constants in 75% dioxan-water solvent at 30 °C have been calculated from potentiometric and spectrophotometric data.

17. The reduction of spectrophotometric data to three chromaticity coordinates by means of the three-function CIE standard observer system for Colorimetry is described

18. Acid-base indicators were immobilized on support by a covalent bond, and their spectrophotometric properties were investigated and compared with their behavior in solution.

19. Calvin Yu-Chian Chen's 72 research works with 2,442 citations and 6,336 reads, including: Spectrophotometric study of DNA interactions with ftorafur and its elementoorganic derivatives

20. Spectrophotometric methods have been described for the determination of vitamin K3 based upon a condensation reaction with acetylacetone, diethylmalonate or ethylcyanoacetate in presence of ammonia.

21. A spectrophotometric method has been developed for the determination of trace amounts of titanium in hydrofluoric acid (semi-conductor grade) using 9-methyl-2,3,7-trihydroxy-6-fluorone.

22. 11 A new spectrophotometric method for the determination of trace nitrite is studied. The method is based on the nitrosation reaction of xylene cyanol FF with nitrite in diluted hydrochloric acid medium.

23. The reagent is employed both as spray reagent for selective visualization of tea catechins on two-dimensional paper Chromatograms (sensitivity <1 microg of d-(+)-catechin) and for their spectrophotometric quantification in the crude extracts of tea polyphenols isolated from fresh

24. Spectrophotometric studies of compounds formed by several substituted antipyrineSchiff bases as electron donors with 2,3-dichloro-5,6-dicyano-benzoquinone, chloranilic acid, and chloranil as electron acceptors have given results that are consistent with 1:1 charge transfer complexes.

25. 4:30pm6:30pm Jr.Ballroomc Poster&Session&I:&Cementitious,&Ceramics&&&Metals 41 BacteriaBased+Cementitious 7 121 BACTP1 BingLiu Shenzhen+University,P.R.China Rapid+quantification+of+viable+spore+of+concrete+self:healing+bacteriaby+asimple+spectrophotometric+method

26. The mutual interactions of Gd(III)tetraphenylporphyrin (GdTPP), Gd(III)tetramethylpyridylporphyrin (GdTMePyP), and the free base tetramethylpyridylporphyrin (H2TMePyP) with some nucleic bases (adenine, thymine, uracil, and cytosine) and their N-glycoside derivatives (adenosine, thymidine, uridine, and cytidine) have been studied by spectrophotometric titration in mixed methanol-ammonia-water solutions.

27. The mineralization of fluorinated organic products in a polyethylene oxygen flask makes it possible to obtain by direct spectrophotometric means a determination of the fluorinated ion [cerium(III)-alizarine fluorinated complexone developed in the presence of 25% v/v of dimethylsulfoxide gives excellent results both from the precision standpoint and reproducibility.

28. The equilibrium reactions between rutin, 3-[6-O-(6-deoxy-α-L-mannopyranosyl)-(β-D-glucopyranosyl)oxy]-2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-4H-1-benzopyran-4-one, and quercetin (rutin aglycone) with iron(III), copper(II), cobalt(II), and nickel(II) have been studied by potentiometric and spectrophotometric methods in aqueous solution.