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110 matches found for cosmetic

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 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...

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 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-...

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...

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...

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 ...

GC Analysis of Fragrance Compounds in Shampoo Base on a 100% Methyl Column after SPME using 100 μm PDMS Fiber

desorption process 5 min, 250 °C desorption temp. -50 °C w/liquid CO2 extraction headspace, 5 min, 80 °C (with sample stirring) SPME fiber polydimethylsiloxane, 100 µm film (57300-U) column 100% methyl polysiloxane, 50 m x 0.25 mm I.D., 0.25 µm (Supelco equivalent, Equity-1, 28047-U) oven 35 °C to 2...

Determination of Water Content in Extracts, Aqueous drops 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 Styling 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...

HPLC Analysis of Antioxidants on SUPELCOSIL™ LC-18

column SUPELCOSIL LC-18, 15 cm x 4.6 mm I.D., 5 µm particles (58230-U) mobile phase [A] 5% acetic acid in deionized water; [B] acetonitrile:methanol (1:1) 70% A/30% B to 100% B, linear gradient over 10 min, hold 10min flow rate 2 mL/min injection 10µL, 20 µg/mL each antioxidant detector UV, 280 nm C...

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 Shampoo 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 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 Benzoic Acid and Related Compounds on Ascentis® RP-Amide

column Ascentis RP-Amide, 15 cm x 4.6 mm I.D., 5 µm particles (565324-U) column temp. 35 °C mobile phase [A] water with 0.1% TFA; [B] acetonitrile; (70:30, A:B) flow rate 1 mL/min injection 10 µL detector UV, 220 nm Categories Analytical Chromatography, Preservatives Featured Industry Cosmetics, Per...

UHPLC Analysis of Benzoyl Peroxide from Clean & Clear® Continuous Control Acne Cleanser on Purospher® STAR RP-18e Hibar® HR

sample preparation Clean & Clear® continuous control acne cleanser at 100 mg/mL in 30:70 acetonitrile: 5 mM potassium phosphate pH 3.0 in water. (See "Sample Prep" at Description Text) 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 potas...

Unmodified Silica TLC Plates

TLC plates manufactured by Merck KGaA, Darmstadt Germany allow reliable, fast and economical analysis of a great range of substances in pharmaceutical, environmental, food and beverage, cosmetics and many more applications. Thanks to a highly standardized production process and an outstanding qualit...

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...

HPLC Analysis of Benzalkonium Chlorides on Discovery® Cyano

column Discovery Cyano, 15 cm x 4.6 mm I.D., 5 µm particles (59356-U) column temp. ambient mobile phase [A] acetonitrile; [B] acetate buffer, pH 4.5, (60:40, A:B) flow rate 1 mL/min sample undefined C8 to C18 Benzalkonium Chlorides detector UV, 254 nm Categories Analytical Chromatography, Antibiotic...

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...

GCxGC Analysis of Allergens in Perfume Sample 1 on SLB®-5ms x SLB®-35ms, Non-Polar to Polar Strategy

column (1D) SLB-5ms, 20 m x 0.18 mm I.D., 0.18 µm (28564-U) column (2D) SLB-35ms, 5 m x 0.25 mm I.D., 0.25 µm (29804-U) oven (modulator) stainless steel accumulation loop measuring 20 cm x 0.71 mm O.D. x 0.51 mm I.D.; modulation period 5.4 sec (accumulation period 4.9 sec; injection period 0.5 sec) ...

HPLC Analysis of Paraben Preservatives on Discovery® C8

column Discovery C8, 15 cm x 4.6 mm I.D., 5 µm particles (59353-U) column temp. 20 °C mobile phase [A] acetonitrile: [B] water, (30:70, A:B) flow rate 1 mL/min injection 10 µL detector UV, 254 nm Categories Analytical Chromatography, Preservatives Featured Industry Cosmetics, Personal Care, and Clea...

Determination of Water Content in Shaving foam 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...

HPLC Analysis of Phenolic Antioxidants on Ascentis® C8

column Ascentis C8, 15 cm x 4.6 mm I.D., 5 µm particles (581424-U) column temp. 30 °C mobile phase [A] 5% acetic acid; [B] (50:50) methanol:acetonitrile gradient 30 to 100% B in 10 min; held for 5 min flow rate 2.0 mL/min sample as indicated in 50:50 acetonitrile:2-propanol injection 10 µL detector ...

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...

GC Analysis of Menthol Enantiomers on α-DEX™ 120

column alpha-DEX 120, 30 m x 0.25 mm I.D., 0.25 µm (24310) oven 110 °C carrier gas helium, 20 cm/sec sample 0.5 mg/mL each component injection 1 µL, 100:1 split detector FID, 300 °C Categories Analytical Chromatography, GC Applications, Alcohols, Enantiomers Featured Industry Cosmetics, Personal Car...