Zobrazeno 1 - 9
of 9
pro vyhledávání: '"J R, Verma"'
Publikováno v:
Journal of Earth System Science. 131
Publikováno v:
Agrica. 10:135-139
Publikováno v:
International Journal of Current Microbiology and Applied Sciences. 9:1162-1166
Publikováno v:
Annals of Plant Protection Sciences. 29:99-101
Publikováno v:
AGRICULTURE UPDATE. 9:373-376
Publikováno v:
Analytica Chimica Acta. 52:357-362
Vanadium(IV) forms a 1 : 2 complex with phenylfluorone. Maximum absorbance occurs at 530 nm. (ϵ=16980) and the complex is stable at pH 4.0–5.0 in a 30% ethanolic solution in presence of 0.02% gelatin. Various metals interfere with the spectrophoto
Publikováno v:
Bulletin of the Chemical Society of Japan. 45:1709-1711
Oxovanadium(IV), VO2+, gives sensitive colour reactions with 4-(2-pyridylazo)resorcinol (e=2.54×104 at λmax 550 nm) and 1-(2-pyridylazo)-2-naphthol (e=1.02×104 at λmax 560 nm). The composition of the complexes VO2+: PAN or PAR was established by
Publikováno v:
Indian pediatrics. 16(7)
Publikováno v:
Chemischer Informationsdienst. 3