Results 11 to 20 of about 1,586,812 (316)

Determination of phenyl(2-naphthyl)amine concentrations in the working environment air using HPLC-FLD technique

Medycyna Pracy, 2022
Background Phenyl(2-naphthyl)amine (FNA) is a flammable solid with a characteristic odor. FNA is used, among others, in the production of paints and dyes, and as an antioxidant in rubber processing, lubricant for automobile engines, in brake fluids, oils,
Anna Jeżewska, Dorota Kondej
doaj   +1 more source

Determination method and its application of effective period for transporting oil and gas by the oil source fault of reservoir separated by caprock

工程科学学报, 2022
In the combination of source rock and reservoir separated by the caprock of a petroliferous basin, the scale of oil and gas accumulation is controlled by the relative length of the effective period of oil and gas transported by the oil source fault.
Mu-gui LIANG, Guang FU, Jin-meng DONG, Qiao-qiao LI   +3 more
doaj   +1 more source

METHODS FOR THE DETERMINATION OF SALICYLATES. [PDF]

Journal of the American Chemical Society, 1909
n ...
openaire   +2 more sources

A FAST HPLC METHOD FOR THE DETERMINATION OF BETACAROTENE AND LYCOPENE FROM DAUCUS CARO [PDF]

, 2023
Beta-carotene and lycopene are important carotenoids present in carrots (Daucus carota). In this study, a fast and efficient HPLC method was developed for the determination of beta-carotene and lycopene from Daucus carota.
Dordai Lucian
core   +1 more source

PCC Properties to Support W/C Determination for Durability [PDF]

, 2012
The fresh concrete water-cement ratio (w/c) determination tool is urgently needed for use in the QC/QA process at the job site. Various techniques have been used in the past to determine this parameter.
Yohannes, Yohannes, Olek, Jan
core   +2 more sources

Sol-gel based sensor for selective formaldehyde determination [PDF]

, 2010
We report the development of transparent sol–gels with entrapped sensitive and selective reagents for the detection of formaldehyde. The sampling method is based on the adsorption of formaldehyde from the air and reaction with β- diketones (for ...
Kanatharana, Proespichaya, Thavarungkul, Panote, Higson, Seamus P. J., Bunkoed, Opas, Davis, Frank   +4 more
core   +1 more source

Kinetic determination of rutin [PDF]

Journal of the Serbian Chemical Society, 2001
A kinetic method is described for the determination of rutin based on its inhibitory effect on the Fe(II)-AA catalysis of the oxidation of C6H5COONa with hydrogen peroxide. Detection limit of this method is 0.16 ng cm-3. The relative error ranges between
D. A. KOSTIC, J. I. VUCETIC, S. M. MILETIC, S. S. MITIC   +3 more
doaj   +3 more sources

Kinetic determination of morin nanoamounts [PDF]

Journal of the Serbian Chemical Society, 2004
A kinetic-spectrophotometric method is proposed for the determination of morin. The method is based on the inhibition effect of morin on the oxidation of C6H5COONa by hydrogen peroxide in the presence of the complex Fe(II)-AA(ascorbic acid), which acts ...
G. Z. MILETIC, S. S. MITIC, D. A. KOSTIC
doaj   +3 more sources

Method for determining iodine-127 in soils

Soil Science Annual, 2016
A method was presented for determining the content of stable iodine-127 (127I) in soil samples. The method is based on the reaction rate of cerium cation (IV) with arsene (III) anion.
Tołoczko Wojciech
doaj   +1 more source

METHODS FOR DETERMINING THYROTOXICOSIS [PDF]

The Journal of Nervous and Mental Disease, 1921
n ...
openaire   +1 more source