Passa al contenuto
Merck

Chemical composition and binary mixture of human urinary stones using FT-Raman spectroscopy method.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy (2013-07-03)
R Selvaraju, A Raja, G Thiruppathi
ABSTRACT

In the present study the human urinary stones were observed in their different chemical compositions of calcium oxalate monohydrate, calcium oxalate dihydrate, calcium phosphate, struvite (magnesium ammonium phosphate), uric acid, cystine, oxammite (ammonium oxalate monohydrate), natroxalate (sodium oxalate), glushinkite (magnesium oxalate dihydrate) and moolooite (copper oxalate) were analyzed using Fourier Transform-Raman (FT-Raman) spectroscopy. For the quantitative analysis, various human urinary stone samples are used for ratios calculation of binary mixtures compositions such as COM/COD, HAP/COD, HAP/COD, Uric acid/COM, uric acid/COD and uric acid/HAP. The calibration curve is used for further analysis of binary mixture of human urinary stones. For the binary mixture calculation the various intensities bands at 1462 cm(-1) (I(COM)), 1473 cm(-1) (I(COD)), 961 cm(-1) (I(HAP)) and 1282 cm(-1) (I(UA)) were used.

MATERIALI
N° Catalogo
Marchio
Descrizione del prodotto

Sigma-Aldrich
Sodium oxalate, ACS reagent, ≥99.5%
Sigma-Aldrich
Oxalic acid, 98%
Sigma-Aldrich
L-Cistina, from non-animal source, meets EP testing specifications, suitable for cell culture, 98.5-101.0%
Sigma-Aldrich
L-Cistina, ≥98% (TLC), crystalline
Sigma-Aldrich
Hydroxyapatite, nanopowder, <200 nm particle size (BET), ≥97%, synthetic
Sigma-Aldrich
Oxalic acid, ReagentPlus®, ≥99%
SAFC
L-Cistina
Sigma-Aldrich
Sodium oxalate, puriss. p.a., ACS reagent, ≥99.5% (RT)
Sigma-Aldrich
Hydroxyapatite, reagent grade, powder, synthetic
Sigma-Aldrich
L-Cistina, ≥99.7% (TLC)
Sigma-Aldrich
Oxalic acid, purified grade, 99.999% trace metals basis
Sigma-Aldrich
Sodium oxalate, ≥99.99% trace metals basis
Sigma-Aldrich
L-Cistina, produced by Wacker Chemie AG, Burghausen, Germany, ≥98.5%
Sigma-Aldrich
Hydroxyapatite, nanoparticles, dispersion, 10 wt. % in H2O, <200 nm particle size (BET)
Sigma-Aldrich
Calcium phosphate tribasic, 34.0-40.0% Ca basis
Sigma-Aldrich
Calcium phosphate tribasic, suitable for plant cell culture, BioReagent, powder
Sigma-Aldrich
Oxalic acid, puriss. p.a., anhydrous, ≥99.0% (RT)
Sigma-Aldrich
Hydroxyapatite, nanopowder, <200 nm particle size (BET), contains 5 wt. % silica as dopant, synthetic
Sigma-Aldrich
Hydroxyapatite, synthetic, 99.8% trace metals basis (excludes Mg)
Supelco
Sodium oxalate, reference material for titrimetry, certified by BAM, >99.5%
Supelco
Oxalic acid concentrate, 0.1 M (COOH)2 (0.2N), eluent concentrate for IC
Supelco
L-Cistina, certified reference material, TraceCERT®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland
L-Cistina, European Pharmacopoeia (EP) Reference Standard