scholarly journals The persulfate oxidation-volumetric determination of manganese using a simple method of calculation

1969 ◽  
Vol 18 (4) ◽  
pp. 513-515
Author(s):  
Katsuji SATO
Keyword(s):  
Simple Method ◽  
Method Of Calculation ◽  
Persulfate Oxidation ◽  
Volumetric Determination

Calcul des éléments dipolaires et quadrupolaires de la matrice de transition moléculaire dans Na2

1990 ◽  
Vol 68 (4-5) ◽  
pp. 365-368 ◽  
Author(s):  
K. Hussein ◽  
O. Babaky
Keyword(s):  
Numerical Integration ◽  
Electronic States ◽  
Transition Elements ◽  
Simple Method ◽  
Selection Rules ◽  
Variable Formula ◽  
Method Of Calculation ◽  
Analytical Integration ◽  
Fifth Order

In this paper, we study a calculation of the transition elements [Formula: see text] between electronic states of the diatomic molecules Na2. We show the necessary selection rules for the determination of these operators by a method of analytical integration on the variable [Formula: see text], combined with a numerical integration to fifth order. The values found by this simple method of calculation are very reasonable and show that the important transitions [Formula: see text], [Formula: see text]; and [Formula: see text] of the dimer Na2 are dipolar. [Traduit par la revue]

Development of a simple method for the determination of single nucleotide polymorphisms

2010 ◽  
Vol 34 (8) ◽  
pp. S75-S75
Author(s):  
Weifeng Zhu ◽  
Zhuoqi Liu ◽  
Daya Luo ◽  
Xinyao Wu ◽  
Fusheng Wan
Keyword(s):  
Single Nucleotide Polymorphisms ◽  
Nucleotide Polymorphisms ◽  
Simple Method ◽  
Single Nucleotide

A Standard Primary Toxicity Bioassay Using Daphnia Magna as a Test Species

1977 ◽  
Vol 12 (1) ◽  
pp. 27-50 ◽  
Author(s):  
L.A. Behie ◽  
J.E. Zajic ◽  
D. Berk ◽  
R.J.P. Brouzes ◽  
V.A. Naish
Keyword(s):  
Statistical Analysis ◽  
Daphnia Magna ◽  
Biological Indicator ◽  
Pulp And Paper ◽  
Toxicity Bioassay ◽  
Simple Method ◽  
Test Species ◽  
Test Organisms ◽  
Dilution Water

Abstract Although Daphnia magna have been widely used in the determination of the toxicity of various substances, there are no reports in the literature that describe a rigorous bioassay method using this organism as a test species. The test described herein involves the standariza-tion of various important aspects of the method such as the age of the test organisms, and the dilution water used for the preparation of the various toxicant concentrations. Also described is a simple method for the statistical analysis of the results. The sensitivity of the proposed bioassay is demonstrated by determining the toxicity of various pulp and paper effluents. Finally, extensive bioassays were carried out simultaneously with rainbow trout and Daphnia magna indicating that Daphnia are as good a biological indicator of acute toxicity as fish.

Hollow fiber supported liquid-phase microextraction combined with maltodextrin-modified capillary electrophoresis for the determination of citalopram enantiomers in urine samples

2015 ◽  
Vol 7 (5) ◽  
pp. 2012-2019 ◽  
Author(s):  
Jafar Abolhasani ◽  
Hamid Reza Jafariyan ◽  
Mohammad Mahdi khataei ◽  
Rahim Hosseinzadeh-khanmiri ◽  
Ebrahim Ghorbani-kalhor ◽  
...  
Keyword(s):  
Capillary Electrophoresis ◽  
Liquid Phase ◽  
Hollow Fiber ◽  
Urine Samples ◽  
Simple Method ◽  
Liquid Phase Microextraction ◽  
Supported Liquid Phase

A simple method was developed for the separation and determination of citalopram enantiomers in urine samples.

Development of a simple method for determination of NO 2 in air using digital scanner images

Talanta ◽  
2015 ◽  
Vol 140 ◽  
pp. 73-80 ◽  
Author(s):  
Juliano Passaretti Filho ◽  
João Flávio da Silveira Petruci ◽  
Arnaldo Alves Cardoso
Keyword(s):  
Simple Method
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