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109 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 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

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 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 (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-...

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...

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 ...

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) ...

GCxGC Analysis of Allergens in Perfume Sample 2 on SLB®-5ms x SLB®-35ms, Non-Polar to Polar Strategy

column (2D)SLB-35ms, 5 m x 0.25 mm I.D., 0.25 µm (29804-U) column (1D) SLB-5ms, 20 m x 0.18 mm I.D., 0.18 µm (28564-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 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...

UHPLC Analysis of Benzoyl peroxide from Neutrogena® Rapid Clear® stubborn acne spot gel on Purospher® STAR RP-18e Hibar® HR

sample preparation 1 gram of Neutrogena® Rapid Clear® Stubborn Acne Spot Gel (10% benzoyl peroxide). (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 Potassium Phosphate, pH 3.0 with phosphoric acid...

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...

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...

TLC/MS Analysis of UV Filters in Sun Cream on HPTLC Silica Gel 60 F254 MS-grade

instrument CAMAG ATS4 plate HPTLC Silica gel 60 F 254 MS-grade 20 cm x 10 cm eluent [A] toluene; [B] n-heptane; (6:4, A:B) migration distance 5 cm chamber normal chamber without chamber saturation sample application volume 1.0, 2.0, 3.0 µL detection UV 254 nm other information identification by coup...

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...

GC Analysis of Allergens in Perfume on SLB®-5ms (10 m x 0.10 mm I.D., 0.10 μm), Fast GC Analysis

column SLB-5ms, 10 m x 0.10 mm I.D., 0.10 µm (28465-U) oven 40 °C, 50 °C/min to 320 °C carrier gas hydrogen, 81.5 cm/sec constant sample neat perfume injection 0.2 µL in the split mode (500:1) inj. temp. 320 °C detector FID, 320 °C Categories Analytical Chromatography, GC Applications, Allergens Fea...

Determination of Water Content in Mascara 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 Sunblock cream (water resistant) 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...

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...

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 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...

GC Analysis of Allergens in Perfume on SLB®-5ms (5 m x 0.05 mm I.D., 0.05 μm), Fast GC Analysis

column SLB-5ms, 5 m x 0.05 mm I.D., 0.05 µm oven 40 °C, 70 °C/min to 300 °C carrier gas hydrogen, 80 cm/sec, 554.4 kPa injection 0.2 µL, 250:1 split inj. temp. 290 °C detector FID, 305 °C Categories Analytical Chromatography, GC Applications, Allergens Featured Industry Cosmetics, Personal Care, and...

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 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...

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 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 Hydrocortisone in Topical Cream on Discovery® HS C18 after SPE using Discovery® DSC-Si

sample preparation SPE (Solid Phase Extraction) SPE tube/cartridge Discovery DSC-Si, 500 mg/3 mL (52695-U) condition 1 mL hexane:ethyl acetate (2:1, v/v) sample addition hydrocortisone topical hand cream in hexane:ethylacetate sample addition 1 mL washing 1 mL hexane:ethyl acetate (2:1, v/v) elution...