Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Basilio Morelli"'
Autor:
Basilio Morelli
Publikováno v:
Analytical Letters. 32:2653-2664
Ratio - spectra fourth - derivative spectrophotometry has been developed for simultaneous determination of the beta-lactam antibiotics ampicillin sodium and dicloxacillin sodium. The amplitude in the fourth derivative of ratio - spectra at 223.5 nm w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::423193eb98af57b094f064a65c759d78
https://doi.org/10.1080/00032719908542995
https://doi.org/10.1080/00032719908542995
Autor:
Basilio Morelli
Publikováno v:
Analytical Letters. 31:2431-2445
Rapid and accurate ternary mixture analysis of noramidopyrine methanesulfonate sodium salt (N), pitophenone hydrochloride (P) and fenpiverine bromide (F), was performed. Ratio-spectra 1st - derivative spectrophotometry by zero-crossing measurements w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0d0dfc4daa6ce2b7033ff0f4be89c76a
https://doi.org/10.1080/00032719808005316
https://doi.org/10.1080/00032719808005316
Autor:
Basilio Morelli
Publikováno v:
Fresenius' Journal of Analytical Chemistry. 357:1179-1184
Binary mixtures of diazepam and otilonium bromide are analyzed by ratio-spectra first- and second-derivative spectrophotometry. The procedures are accurate, non-destructive and do not require any separation step. Calibration graphs are linear with ze
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::29130f256d5aeca430f977f3f06027d4
https://doi.org/10.1007/s002160050327
https://doi.org/10.1007/s002160050327
Autor:
Basilio Morelli
Publikováno v:
Analytical Letters. 29:1551-1562
Difference (ΔA) and difference first- (ΔD1) and second- (ΔD2) derivative spectrophotometric methods are described for the assay and quality control of anafranil, a powerful antidepressant, in pharmaceutical formulations. The procedures are based u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dc464284b4c07fe5417f7a1548c613e6
https://doi.org/10.1080/00032719608001504
https://doi.org/10.1080/00032719608001504
Autor:
Basilio Morelli
Publikováno v:
Analytical Letters. 27:2751-2768
The ratio-spectra zero-crossing first and third derivative spectrophotometry have been used for determining ternary mixtures of Vitamin 86, Vitamin B1 and Vitamin B12. The procedures are accurate, nondestructive and do not require solving of equation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6beb1b1bd011f40f4469d6afd80cef9c
https://doi.org/10.1080/00032719408006005
https://doi.org/10.1080/00032719408006005
Autor:
Basilio Morelli
Publikováno v:
Journal of Pharmaceutical Sciences. 79:261-265
Mixtures of aztreonam, 2S-[2 alpha,3 beta(Z)]-2-[[[1-(2-amino-4-thiazolyl-2- [(2-methyl-4-oxo-1-sulfo-3-azetidinyl) amino]-2-oxo- ethylidine]amino]oxy]-2-methyl-propanoic acid, and L-arginine are assayed by peak-to-baseline, peak-to-peak, and zero-cr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::958b940edb63151f96a4202f06df8041
https://doi.org/10.1002/jps.2600790317
https://doi.org/10.1002/jps.2600790317
Autor:
Basilio Morelli
Publikováno v:
Journal of pharmaceutical and biomedical analysis. 33(3)
Binary mixtures of dipyrone and pitophenone hydrochloride are assayed by zero-crossing second- and third-derivative spectrophotometry and by ratio-spectra first- and second-derivative spectrophotometry. In the first method, calibration plots are line
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d6a13de15c44621da935145c2af525ef
https://pubmed.ncbi.nlm.nih.gov/14550861
https://pubmed.ncbi.nlm.nih.gov/14550861
Autor:
Basilio Morelli
Publikováno v:
Journal of pharmaceutical and biomedical analysis. 32(2)
Derivative spectrophotometry (ratio-spectra 1st- and 2nd-derivative and zero-crossing 2nd-derivative techniques) was applied for the determination of some cephalosporins in two component mixtures. Cefotaxime sodium salt (C(16)H(16)O(7)N(5)S(2)Na) and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::409c7d5ba7daef9ce44c96cc13a0fa6f
https://pubmed.ncbi.nlm.nih.gov/12763535
https://pubmed.ncbi.nlm.nih.gov/12763535
Autor:
Basilio Morelli
Publikováno v:
Journal of pharmaceutical and biomedical analysis. 13(3)
The ratio-spectra zero-crossing first- and third-derivative spectrophotometry have been used for determining ternary mixtures of penicillin-G sodium, penicillin-G procain and dihydrostreptomycin sulphate salts. The procedures are accurate, nondestruc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::394175b3885d9c3da00dad303c53e96a
https://pubmed.ncbi.nlm.nih.gov/7542479
https://pubmed.ncbi.nlm.nih.gov/7542479
Autor:
Basilio Morelli
Publikováno v:
Journal of pharmaceutical sciences. 84(1)
A new method for determining a quaternary mixture of vitamins B6, B1, and B12 and uridine 5'-triphosphate (UPT) using second-derivative spectrophotometry is described. Calibration graphs were linear up to 30 micrograms/mL of vitamin B6 at 307 nm (r =
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::44fc6543b5c28077d43f9c5447637e4a
https://pubmed.ncbi.nlm.nih.gov/7714740
https://pubmed.ncbi.nlm.nih.gov/7714740