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110 matches found for cosmetic

HPLC Analysis of Cosmetic Preservatives on Ascentis® Express C18 (0.6 mL/min)

column Ascentis Express C18, 7.5 cm x 3 mm I.D., 2.7 µm particles (53812-U) column temp. 35 °C mobile phase [A] water; [B] methanol; (55:45, A:B) flow rate 0.6 mL/min sample methyl-, benzylparaben, 50 mg/L; ethylparaben, 30 mg/L; propyl-, butylparaben, 100 mg/L; 2-phenoxyethanol, 1.5 g/L; 1-phenoxy-...

HPLC Analysis of Cosmetic Preservatives on Ascentis® Express RP-Amide

column Ascentis Express RP-Amide, 10 cm x 3 mm I.D., 2.7 µm particles (53918-U) column temp. 50 °C mobile phase [A] water; [B] methanol; (60:40, A:B) flow rate 0.6 mL/min pressure 2900 psi (200 bar) sample methyl-, benzylparaben (50 mg/L), ethylparaben (30 mg/L), propyl-, butylparaben (100 mg/L), 2-...

HPLC Analysis of Cosmetic Preservatives on Ascentis® Express RP-Amide at Elevated Temperature (0.6 mL/min)

column Ascentis Express RP-Amide, 10 cm x 3 mm I.D., 2.7 µm particles (53918-U) column temp. 50 °C mobile phase [A] water; [B] methanol; (60:40, A:B) flow rate 0.6 mL/min sample methyl-, benzylparaben, 50 mg/L; ethylparaben, 30 mg/L; propyl-, butylparaben, 100 mg/L; 2-phenoxyethanol, 1.5 g/L; 1-phen...

HPLC Analysis of Cosmetic Preservatives on Ascentis® Express C18 (1.2 mL/min)

column Ascentis Express C18, 7.5 cm x 3 mm I.D., 2.7 µm particles (53812-U) column temp. 35 °C mobile phase [A] water; [B] methanol; (55:45, A:B) flow rate 1.2 mL/min sample methyl-, benzylparaben, 50 mg/L; ethylparaben, 30 mg/L; propyl-, butylparaben, 100 mg/L; 2-phenoxyethanol, 1.5 g/L; 1-phenoxy-...

HPLC Analysis of Cosmetic Preservatives on Ascentis® Express RP-Amide at Elevated Flow and Temperature (1.2 mL/min)

column Ascentis Express RP-Amide, 10 cm x 3 mm I.D., 2.7 µm particles (53918-U) column temp. 50 °C mobile phase [A] water; [B] methanol; (60:40, A:B) flow rate 1.2 mL/min sample methyl-, benzylparaben, 50 mg/L; ethylparaben, 30 mg/L; propyl-, butylparaben, 100 mg/L; 2-phenoxyethanol, 1.5 g/L; 1-phen...

TLC Analysis of a cosmetic active on HPTLC Silica gel 60 F254 (analyte set 2)

sample preparation 1 g cosmetic samples was stirred with 10 ml 1-Propanol at room temperature and filtered with a 0.45 μm syringe filter. Application with CAMAG ATS4, 6 mm bandwise. detector 254, 366 nm and white light (Derivatisation: Anisaldehyde- sulfuric acid) eluent [A] petroleum benzine; [B] 1...

TLC Analysis Of Vitamin C Derivates From Cosmetic Formulation on HPTLC Silica gel 60 F254s

sample preparation 1 g cosmetic formulation (1% and 2% active) was stirred in 10 ml THF for 15 min and filtered over a 0.45 μm syringe filter. Application by CAMAG ATS4 6 mm bandwise. sample 0.150 μL detector UV, 254 nm (Identification by coupling the TLC – MS Interface (CAMAG) with the Advion expre...

TLC Analysis Of a Cosmetic Active on HPTLC Silica Gel 60 F254 (analyte set 1)

detector UV, 254 nm (Identification by coupling the TLC – MS Interface (CAMAG) with Microsaic 3500 MiD mass spectrometer (+)-ESI mode. Eluent: Acetonitrile / Water (95/5) + 0.1% TFA) eluent [A] petroleum benzine; [B] acetone; (8:2, A:B) chamber normal chamber without chamber saturation migration dis...

Selecting a GC Column for Specific Industries/Applications

We know that only the most accurate analytical products will do. That’s why we offer the Supelco portfolio of analytical GC columns, providing you the accuracy, precision and consistency you need. Gas chromatography, first established in the 1950′s, is a mature analytical technique with many establi...

Sample prep-free determination of Arginine and Taurine in shampoo by using TLC-MS

The application of modern thin-layer chromatography (TLC) offers a lot of advantages especially in the field of cosmetics. The ingredients can usually be separated directly from complex matrices and many samples can be analysed quickly and simultaneously under exactly the same conditions. Below the ...

Determination of Water Content in Miglyol, Neutral oil Using Karl Fischer Titration

Cosmetics, Pharmaceuticals Cosmetics Cosmetics on an aqueous and alcoholic basis can be titrated without problems according to the Karl Fischer (KF) method. Due to the often high water concentration of the emulsions small samples are required. The accuracy of analysis is determined through exact sam...

HPLC Analysis of Chlorhexidine and Robenidine on Ascentis® Phenyl

column Ascentis Phenyl 15 cm x 4.6 mm I.D., 5 µm particles (581616-U) column temp. 35 °C mobile phase [A] water; [B] acetonitrile; [C] 500 mM ammonium formate, pH 3.0 with formic acid gradient 10% C constant; 65% A, 25% B to 0% A, 90% B in 7 min; held for 2 min; to 65% A, 25% B in 0.5 min flow rate ...

Determination of Water Content in Shower gel Using Karl Fischer Titration

Cosmetics Cosmetics Cosmetics on an aqueous and alcoholic basis can be titrated without problems according to the Karl Fischer (KF) method. Due to the often high water concentration of the emulsions small samples are required. The accuracy of analysis is determined through exact sampling, weighing a...

Determination of Water Content in Oil of lemmons Using Karl Fischer Titration

Cosmetics, Foodstuffs Cosmetics Cosmetics on an aqueous and alcoholic basis can be titrated without problems according to the Karl Fischer (KF) method. Due to the often high water concentration of the emulsions small samples are required. The accuracy of analysis is determined through exact sampling...

Determination of Water Content in Cinnamon oils Using Karl Fischer Titration

Cosmetics, Foodstuffs Cosmetics Cosmetics on an aqueous and alcoholic basis can be titrated without problems according to the Karl Fischer (KF) method. Due to the often high water concentration of the emulsions small samples are required. The accuracy of analysis is determined through exact sampling...

Determination of Water Content in Oil of oranges Using Karl Fischer Titration

Cosmetics, Foodstuffs Cosmetics Cosmetics on an aqueous and alcoholic basis can be titrated without problems according to the Karl Fischer (KF) method. Due to the often high water concentration of the emulsions small samples are required. The accuracy of analysis is determined through exact sampling...

Determination of Water Content in Moisturising lotion Using Karl Fischer Titration

Cosmetics Cosmetics Cosmetics on an aqueous and alcoholic basis can be titrated without problems according to the Karl Fischer (KF) method. Due to the often high water concentration of the emulsions small samples are required. The accuracy of analysis is determined through exact sampling, weighing a...

TLC Analysis of Skin Cream Ingredients on HPTLC Silica gel 60 RP-18 WF254s

sample 0.2 µL eluent [A] chloroform; [B] methanol; (95:5, A:B) migration distance 5 cm plate HPTLC pre-coated plate RP-18w F 254s (1.13124.0001) chamber normal chamber without chamber saturation Categories Analytical Chromatography, TLC Applications, steroids Featured Industry Cosmetics, Personal Ca...

HPLC Analysis of Sunscreens on Ascentis® C18

column Ascentis C18, 15 cm x 4.6 mm I.D., 5 µm particles (581324-U) column temp. 35 °C mobile phase [A] water, [B] methanol, (88:12, A:B) flow rate 1 mL/min sample 50 µg/mL in mobile phase injection 10 µL detector UV, 305 nm Categories Analytical Chromatography, Ketones, Esters Featured Industry Cos...

Determination of Water Content in Oil of tangerines Using Karl Fischer Titration

Cosmetics, Foodstuffs Cosmetics Cosmetics on an aqueous and alcoholic basis can be titrated without problems according to the Karl Fischer (KF) method. Due to the often high water concentration of the emulsions small samples are required. The accuracy of analysis is determined through exact sampling...

Determination of Water Content in Moisturizer Using Karl Fischer Titration

Cosmetics Cosmetics Cosmetics on an aqueous and alcoholic basis can be titrated without problems according to the Karl Fischer (KF) method. Due to the often high water concentration of the emulsions small samples are required. The accuracy of analysis is determined through exact sampling, weighing a...

UHPLC Analysis of Kathon on Titan™ C18 using MS Detection

column Titan C18 50 mm x 2.1 mm, I.D, 1.9 µm particles (577122-U) mobile phase [A] 0.1% formic acid in water [B]:methanol flow rate 500 µL/min sample Diluted Kathon at 1 µg/mL in 95:5 0.1% formic acid in water::methanol injection 1 µL detector MS, ESI (+) MRM TIC detector Diode Array at 275 nm Categ...

TLC and HPTLC Plates with Concentrating Zone

Quick and Easy Application of Large Sample Volumes Our concentrating zone plates are based on the different properties of two silica adsorbents: an inert, large-pore concentrating adsorbent where the samples are applied; and a selective separation layer. Independent of the shape, size or position of...

HPLC Analysis of Mandelic Acid Enantiomers on Astec® CHIROBIOTIC® TAG

column CHIROBIOTIC TAG, 25 cm x 4.6 mm I.D., 5 µm particles (14024AST) column temp. 25 °C mobile phase 0.1 wt% ammonium formate in methanol flow rate 1 mL/min sample 2 mg/mL in methanol injection 5 µL detector UV, 254 nm Categories Analytical Chromatography, Chiral Applications, Chemicals and Indust...

HPLC Analysis of Lutein on Ascentis® Express C18

sample preparation SPE (Solid Phase Extraction) column Ascentis Express C18, 5 cm x 2.1 mm I.D., 2.7 mum particles (53822-U) column temp. 30 °C mobile phase [A] Acetonitrile; [B] Water; (90:10, A:B) flow rate 1.0 mL/min pressure 2581 psi (178 bar) sample 0.10 mg/mL of Lutein in 50/50 MeOH/THF inject...

Determination of Water Content in Hair spray Using Karl Fischer Titration

Cosmetics Cosmetics Cosmetics on an aqueous and alcoholic basis can be titrated without problems according to the Karl Fischer (KF) method. Due to the often high water concentration of the emulsions small samples are required. The accuracy of analysis is determined through exact sampling, weighing a...

Determination of Water Content in Fusel oils Using Karl Fischer Titration

Cosmetics, Foodstuffs Cosmetics Cosmetics on an aqueous and alcoholic basis can be titrated without problems according to the Karl Fischer (KF) method. Due to the often high water concentration of the emulsions small samples are required. The accuracy of analysis is determined through exact sampling...

GC Analysis of Phthalate Esters in Perfume on SLB®-5ms (20 m x 0.18 mm I.D., 0.18 μm), Fast GC Analysis

column SLB-5ms, 20 m x 0.18 mm I.D., 0.18 µm (28564-U) oven 60 °C (1 min), 10 °C/min to 330 °C (10 min) carrier gas helium, 0.6 mL/min, constant sample cologne sample spiked at 100 µg/mL with various phthalate esters liner 4 mm ID focus liner with taper inj. temp. 250 °C Analysis Note Phthalate este...

LC/MS Analysis of Anti-infectives on Ascentis® Express Biphenyl

column Ascentis Express Biphenyl, 10 cm x 3.0 mm, 2.7 µm particles (64066-U) column temp. 35 °C gradient 10 mM ammonium formate (70:30 water:acetonitrile) SW pH 4.00 flow rate 0.6 mL/min pressure 997 psi (68.7 bar) sample 300ng/mL in 85:15, water:methanol injection 5 µL detector MS, ESI+, XIC Featur...

UHPLC analysis of Benzoyl peroxide and degradation products on Purospher® STAR RP-18e Hibar® HR

column Purospher STAR RP-18e Hibar HR, 10 cm x 2.1 mm I.D., 2.0 μm, 120Å (1.50648.0001) mobile phase [A] 5 mM Potassium Phosphate, pH 3.0 with phosphoric acid in water; [B] Acetonitrile gradient 40 to 80% B in 9 min; hold at 80% B for 2 min; to 40% B in 0.1 min; to hold at 40% B for 6.9 min flow rat...