Sample records for silver 103
from WorldWideScience.org

Sample records 1 - 2 shown.



1

The utility of screening for perinatal depression in the second trimester among Chinese: a three-wave prospective longitudinal study

Lau, Ying; Wong, Keung Fu Daniel; Chan, Sin Kin

This paper aims to study the pattern of perinatal depressive symptomatology and determine the predictive power of second trimester perinatal depressive symptoms for future perinatal periods. A population-based sample of 2,178 women completed the Edinburgh Postnatal Depression Scale (EPDS) in the sec...

DRIVER (Portuguese)

2

Determinação turbidimétrica de dipirona em fluxo utilizando um reator contendo cloreto de prata imobilizado em resina poliéster/ Flow injection turbidimetric determination of dipyrone using a solid-phase reactor containing silver chloride immobilized in a polyester resin

Marcolino-Jr., Luiz H.; Bonifácio, Viviane Gomes; Fatibello-Filho, Orlando; Teixeira, Marcos F. S.
2005-10-01

Resumo em inglês A simple flow injection procedure was developed for determining dipyrone (1-phenyl-2,3-dimethyl-4-methylaminomethano-5-pyrazolone sodium, metamizol, analgin) in pharmaceutical formulations. The determination is based on the reduction of Ag+ ions to Ag0 by dipyrone. A colloidal suspension of Ag0 produced was transported by carrier solution (0.01 mol L-1 NaOH) and turbidimetrically detected at 425 nm. The analytical curve for dipyrone was linear in the range from 5.0 x 10-4 (mais) to 2.5 x 10-3 mol L-1 with a correlation coefficient of 0.9990. The detection limit was 1.3 x 10-4 mol L-1 (3sigmaB/slope). The relative standard deviation for ten successive measurements was 1.8% and an analytical frequency of 45 h-1 was obtained. The recovery values from three samples ranged from 96.0 to 102%.

Scientific Electronic Library Online (Portuguese)