Zobrazeno 1 - 10
of 39
pro vyhledávání: '"J. R. Mehta"'
Publikováno v:
Coloration Technology. 124:379-384
3-Hydroxy-2-[1′-phenyl-3′-(p-chlorophenyl)-4′-pyrazolyl]-4-oxo-4H-1-benzopyran solution in acetone forms a yellow-coloured complex with tungsten(vi) in perchloric acid medium which is extractable into chloroform after equilibration. In this stu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80bfb9e03b1503d32570b136633d560a
https://doi.org/10.1111/j.1478-4408.2008.00167.x
https://doi.org/10.1111/j.1478-4408.2008.00167.x
Publikováno v:
Bulletin of the Chemical Society of Japan. 81:116-119
An extractive spectrophotometric method was developed for the trace determination of tungsten in an acidic medium. A yellow-colored 1:3 complex of tungsten(VI) and 6-chloro-3-hydroxy-2-(2′-thienyl)...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5bc989337e16e7a13d816a129e1d4943
https://doi.org/10.1246/bcsj.81.116
https://doi.org/10.1246/bcsj.81.116
Publikováno v:
Annali di Chimica. 96:479-485
3-Hydroxy-2-[1'-phenyl-3'-(p-chlorophenyl)-4'-pyrazolyl]-4-oxo-4H-1benzopyran (HPCPB) is used as an analytical reagent for the spectrophotometric determination of niobium in trace amounts with which it forms a yellow coloured complex (4:1) in perchlo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::00e57459f4b7e0e0c4074e98659bd151
https://doi.org/10.1002/adic.200690048
https://doi.org/10.1002/adic.200690048
Autor:
J. R. Mehta, N. Agnihotri
Publikováno v:
Annali di Chimica. 94:341-345
A simple, rapid, highly sensitive and selective spectrophotometric method for the determination of tungsten(VI) in trace amounts is developed using 3-hydroxy-2-(2'-thienyl)-4-oxo-4H-1-benzopyran (HTB) as a reagent for the complexation of metal ion an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::887b021c67aa1f07124845548e0cbd5a
https://doi.org/10.1002/adic.200490039
https://doi.org/10.1002/adic.200490039
Autor:
J R Mehta
Practice for Lettering, Types of Lines, Dimensioning, Orthographic Projections, Isometric Projection, Missing Lines, Missing View, Engineering Curves Solutions
Publikováno v:
East Asian archives of psychiatry : official journal of the Hong Kong College of Psychiatrists = Dong Ya jing shen ke xue zhi : Xianggang jing shen ke yi xue yuan qi kan. 24(4)
This was a single-centre, cross-sectional, observational study performed at a tertiary care hospital in India to study the association of psychiatric co-morbidities and quality of life with severity of chronic obstructive pulmonary disease (COPD).A t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::51496f3fc6818cd6916357da6c578988
https://pubmed.ncbi.nlm.nih.gov/25482834
https://pubmed.ncbi.nlm.nih.gov/25482834
Autor:
Rameshwar Dass, J. R. Mehta
Publikováno v:
Bulletin of the Chemical Society of Japan. 67:2103-2106
Sodium dithionite has been recommended as a new reductant in the thiocyanate method for the spectrophotometric determination of molybdenum. The study is based on prior extraction of molybdenum(VI)–thiocyanate species in ethyl acetate from 0.8 mol d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::084b91bc2d94dab88d3dc84d156d60c1
https://doi.org/10.1246/bcsj.67.2103
https://doi.org/10.1246/bcsj.67.2103
Autor:
Rameshwar Dass, J. R. Mehta
Publikováno v:
Bulletin of the Chemical Society of Japan. 66:2251-2254
2-(2-Furyl)-3-hydroxy-4H-chromen-4-one (FHC) has been used as an analytical reagent for the spectrophotometric determination of molybdenum. Molybdenum(VI) in the presence of several cations except Sb(V), Bi(III), and Ce(IV), anions and complexing age
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c7d1230354389a4d365b682856eeafc0
https://doi.org/10.1246/bcsj.66.2251
https://doi.org/10.1246/bcsj.66.2251
Autor:
J. R. Mehta, Rameshwar Dass
Publikováno v:
Bulletin of the Chemical Society of Japan. 66:1086-1090
2′-Hydroxyacetophenone benzoylhydrazone (HABH) has been used for the first time as an analytical reagent for determination of molybdenum spectrophotometrically. Molybdenum (VI) in presence of large number of cations, anions, and complexing agents e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c56cb17a962282129cd83495b264054
https://doi.org/10.1246/bcsj.66.1086
https://doi.org/10.1246/bcsj.66.1086
Department of Chemistry, Kurukshetra University, Kurukshetra-136 119, Haryana, India E-mail : Chem_hks@rediffmail.com Manuscript received 7 May 2007, accepted 21 May 2007 Tin(II) forms a 1 : 2 (M : L) yellow complex with 3-hydroxy-2-phenyl-4-oxo-4H-1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::067396b8b03945c05f5597f1cf8e3c8b