ChemInform Abstract: DETERMINATION OF THE OVERALL DISSOCIATION CONSTANTS OF THE GROUP 1A ACETATES AND PERCHLORATES IN GLACIAL ACETIC ACID

1981 ◽  
Vol 12 (45) ◽  
Author(s):  
C. M. TANG ◽  
J. A. JUN. MCLEAN
Keyword(s):  
Acetic Acid ◽  
Glacial Acetic Acid ◽  
Dissociation Constants

Reverse Phase Liquid Chromatographic Determination of Chlorophacinone and Diphacinone in Bait Formulations

1982 ◽  
Vol 65 (4) ◽  
pp. 927-929
Author(s):  
Brian R Bennett ◽  
Gregory S Grimes
Keyword(s):  
Acetic Acid ◽  
Glacial Acetic Acid ◽  
Chromatographic Determination ◽  
Reverse Phase ◽  
Target Concentration ◽  
External Standard ◽  
Liquid Chromatographic Determination ◽  
Phase Liquid ◽  
Liquid Chromatographic

Abstract Chlorophacinone and diphacinone are extracted at the 0.005% level from grain or paraffinized baits with glacial acetic acid. The target concentration is 0.01 mg/mL. The filtered supernate is chromatographed on a Partisil PXS ODS10/25 liquid chromatography column with premixed and degassed glacial acetic acid-tetrahydrofuran-water (14 + 2 + 9) and detected at 288 nm. The concentration is calculated by using an external standard. The recovery from spiked samples averaged 96.6% for both analytes. The response is linear from 0.001 to 0.040 mg/mL. The coefficient of variation of within-day replicates ranged from 1.1 to 2.5%.

Method for the accurate determination of specific rotation. Specific rotation of valine and leucine

1969 ◽  
Vol 47 (15) ◽  
pp. 2739-2746 ◽  
Author(s):  
J. C. MacDonald
Keyword(s):  
Acetic Acid ◽  
Glacial Acetic Acid ◽  
Optical Rotation ◽  
Accurate Determination ◽  
Computer Calculation ◽  
Specific Rotation ◽  
Best Fit

The optical rotation of various concentrations of L-valine and L-leucine, dissolved in glacial acetic acid, or 5 or 6 M HCl, was measured with a photoelectric polarimeter at the nominal wavelengths 589, 578, 546, 436, and 365 nm and temperatures of 20, 25, and 30 °C. The specific rotation for any one wavelength, solute, and solvent could be defined by the equation [α]λT = A(1 + D(T − 25)) + BC, where T is temperature in °C, C is concentration in grams of solute per 100 ml of solution, and A, B, and D are constants. The best fit values of the constants were determined by computer calculation and are listed. Constants are also given for calculating a specific rotation based on grams of solute per 100 g of solution.

Determination of acetaldehyde in glacial acetic acid by gas chromatography

1974 ◽  
Vol 46 (11) ◽  
pp. 1584-1584 ◽  
Author(s):  
Harold J. Rhodes ◽  
David W. Bode ◽  
Martin I. Blake
Keyword(s):  
Gas Chromatography ◽  
Acetic Acid ◽  
Glacial Acetic Acid
Sign in / Sign up

Export Citation Format

Share Document