一二三四区视频,亚洲少妇熟女色,日本久热无码视频网,欧美国产日韩大尺度,亚洲a视频,久久少妇一区二区,日韩999无码视频,刺激久久久久久久,啊啊啊啊不要啊在线

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 841 suppliers $10.00-$8580.00
Avobenzone 70356-09-1 C20H22O3 612 suppliers $10.00-$2055.90
Octocrylene 6197-30-4 C24H27NO2 542 suppliers $5.00-$7507.50
Ethylhexyl Triazone 88122-99-0 C48H66N6O6 385 suppliers $8.00-$1394.66
Diethylamino hydroxybenzoyl hexyl benzoate 302776-68-7 C24H31NO4 330 suppliers $8.00-$650.00
Silica glass 10279-57-9 H2O3Si 228 suppliers Inquiry
4-METHOXYCINNAMIC ACID 2-ETHYLHEXYL ESTER 83834-59-7 C18H26O3 224 suppliers $14.00-$239.00
Hexyl benzoate 6789-88-4 C13H18O2 186 suppliers $8.00-$13218.30
DIETHYLAMINOHYDROXYBENZOYL HEXYL BENZOATE C24H31NO4 7 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
林口县| 长岛县| 万全县| 德阳市| 鲁山县| 武义县| 皋兰县| 逊克县| 英山县| 屏东市| 扎赉特旗| 东兰县| 吉林市| 威远县| 邯郸市| 广平县| 鄂托克前旗| 内江市| 桂平市| 彭山县| 高要市| 谢通门县| 南皮县| 安庆市| 靖宇县| 花莲市| 察哈| 潼南县| 瑞昌市| 勃利县| 甘泉县| 益阳市| 平顺县| 梅州市| 通化市| 田阳县| 广平县| 佛山市| 建平县| 巴塘县| 岱山县|