成人免费xx,国产又黄又湿又刺激不卡网站,成人性视频app菠萝网站,色天天天天

ChemicalBook >> journal list >> The Scientific World Journal >>article
The Scientific World Journal

The Scientific World Journal

Download PDF

Quantification of sunscreen ethylhexyl triazone in topical skin-care products by normal-phase TLC/densitometry.

Published:1 January 2012 DOI: 10.1100/2012/807516 PMID: 22629203
Anna W Sobanska, Jaroslaw Pyzowski

Abstract

Ethylhexyl triazone (ET) was separated from other sunscreens such as avobenzone, octocrylene, octyl methoxycinnamate, and diethylamino hydroxybenzoyl hexyl benzoate and from parabens by normal-phase HPTLC on silica gel 60 as stationary phase. Two mobile phases were particularly effective: (A) cyclohexane-diethyl ether 1 : 1 (v/v) and (B) cyclohexane-diethyl ether-acetone 15 : 1 : 2 (v/v/v) since apart from ET analysis they facilitated separation and quantification of other sunscreens present in the formulations. Densitometric scanning was performed at 300 nm. Calibration curves for ET were nonlinear (second-degree polynomials), with R > 0.998. For both mobile phases limits of detection (LOD) were 0.03 and limits of quantification (LOQ) 0.1 μg spot(-1). Both methods were validated.

Substances (9)

Related products
Procduct Name CAS Molecular Formula Supplier Price
Cyclohexane 110-82-7 C6H12 813 suppliers $10.00-$8580.00
Avobenzone 70356-09-1 C20H22O3 581 suppliers $14.00-$2055.90
Octocrylene 6197-30-4 C24H27NO2 489 suppliers $5.00-$7507.50
Ethylhexyl Triazone 88122-99-0 C48H66N6O6 357 suppliers $9.00-$1394.66
Diethylamino hydroxybenzoyl hexyl benzoate 302776-68-7 C24H31NO4 302 suppliers $11.00-$650.00
4-METHOXYCINNAMIC ACID 2-ETHYLHEXYL ESTER 83834-59-7 C18H26O3 208 suppliers $14.00-$239.00
Silica glass 10279-57-9 H2O3Si 200 suppliers Inquiry
Hexyl benzoate 6789-88-4 C13H18O2 174 suppliers $8.00-$727.00
DIETHYLAMINOHYDROXYBENZOYL HEXYL BENZOATE C24H31NO4 4 suppliers Inquiry

Similar articles

IF:2.8

In vivo Human Skin Penetration of the UV Filter Ethylhexyl Triazone: Effect of Lipid Microparticle Encapsulation.

Skin Pharmacology and Physiology Santo Scalia, Sarah Battaglioli,etc Published: 1 January 2019
IF:0

ENHANCING THE SUNSCREEN EFFICACY OF BEMOTRIZINOL MICROPIGMENT BY USING O/W NANOEMULSION TOPICAL PREPARATIONS

International Journal of Pharmacy and Pharmaceutical Sciences Dina Hashim,?N. M. Sheta,etc Published: 17 May 2019
IF:2.9

New metabolites of 2-ethylhexyl salicylate in human urine after simulated real-life dermal sunscreen application

Toxicology letters Laura Kuhlmann, Thomas G?en,etc Published: 20 July 2024