scholarly journals Spectrophotometric Determination of Urinary Protein with o-Sulfophenylfluorone-Metal Complex

2005 ◽  
Vol 21 (10) ◽  
pp. 1237-1240 ◽  
Author(s):  
Takako YAMAGUCHI ◽  
Emi AMANO ◽  
Shinichiro KAMINO ◽  
Satoko UMEHARA ◽  
Chizuko YANAIHARA ◽  
...  
1991 ◽  
Vol 7 (Supple) ◽  
pp. 771-774 ◽  
Author(s):  
YOSHIKAZU FUJITA ◽  
ITSUO MORI ◽  
MINAKO TOYODA

1997 ◽  
Vol 22 (0) ◽  
pp. 09-14 ◽  
Author(s):  
Zaida FERNÁNDEZ TERRA ◽  
Rubén DEL TÓRO DÉNIZ ◽  
Humberto VARELA DE MOYA

A method has been developed for the extraction and spectrophotometric determination of Hg2+ in a concentration range of 0.2-1.0 mg L-1; following the Lambert-Beer's law using high molecular weight quaternary ammonium salts dissolved in chloroform. The metal complex anion was determined in the extract in the region UV (260 nm).


1994 ◽  
Vol 27 (8) ◽  
pp. 1595-1611 ◽  
Author(s):  
A. Arrebola Ramírez ◽  
D. Gázquez ◽  
I. M. de la Rosa ◽  
F. Moreno

2020 ◽  
Vol 32 (7) ◽  
pp. 1597-1602
Author(s):  
N. Kaur ◽  
N. Agnihotri ◽  
U. Berar

A simple, rapid, sensitive and selective extractive spectrophotometric method is developed for the trace determination of palladium(II) from NaHCO3 medium using 6-chloro-3-hydroxy-7-methyl-2- (2′-thienyl)-4-oxo-4H-1-benzopyran (CHMTB) as a colouring agent. The proposed metal complex can be quantitatively extracted into ethyl acetate and absorbs maximum in the wavelength range 415-426 nm. The 1:1 yellow complex obeys linearity over the Pd(II) concentration range of 0-2.6 μg mL-1; the correlation coefficient being 0.9998. The molar annihilation coefficient and Sandell′s sensitivity when applying spectrophotometric determination at 420 nm, were 6.173 × 104 L mol-1 cm-1 and 0.0017 μg Pd(II) cm-2, respectively. The proposed method is free from the interference of Os(VIII), Cr(VI), Mo(VI), V(V), Nb(V), Ce(IV), Se(IV), Zr(IV), Pt(IV), Ru(III), Ir(III) and Fe(III) . The method was effectively applied to the determination of Pd(II) in various samples including palladium charcoal catalyst and water


2008 ◽  
Vol 111 (6) ◽  
pp. 199-202 ◽  
Author(s):  
M. Blanco ◽  
T. Canals ◽  
J. Coello ◽  
J. Gené ◽  
H. Iturriaga ◽  
...  

2018 ◽  
Author(s):  
Xhulieta Hamiti ◽  
Ilirjana Boci ◽  
Pranvera Lazo

Sign in / Sign up

Export Citation Format

Share Document