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110 matches found for cosmetic

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...

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 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 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 ...

Determination of UV filter in sun cream using TLC-MS

The analytical verification of cosmetic products can be a challenging task. Formulations like creams, balms or lotions are complex matrices with respect to chromatography, so low-level sample preparation and a direct analysis method is appreciated. TLC-MS (thin layer chromatography – mass spectromet...

GC Analysis of Sicilian Mandarin Essential Oil on SLB®-5ms

column SLB-5ms, 30 m x 0.25 mm I.D., 0.25 µm (28471-U) oven 50 °C, 3 °C/min. to 250 °C (10 min), 10 °C/min to 270 °C (3 min) carrier gas helium, 30 cm/sec, constant sample Sicilian mandarin essential oil diluted 1:10 in n-hexane injection 1 µL, 50:1 split inj. temp. 280 °C detector FID, 280 °C Analy...

GC Analysis of Cold Pressed Bergamot Essential Oil on SLB®-5ms

column SLB-5ms, 30 m x 0.25 mm I.D., 0.25 µm (28471-U) oven 50 °C, 3 °C/min to 250 °C (5 min) carrier gas helium, 30 cm/sec, constant sample cold pressed bergamot oil injection Wet needle, 100:1 split inj. temp. 250 °C detector FID, 300 °C Analysis Note Bergamot oil is used in cosmetic preparations ...

Essential Oil on SLB®-5ms

column SLB-5ms, 30 m x 0.25 mm I.D., 0.25 µm (28471-U) oven 50 °C, 3 °C/min to 250 °C (5 min) carrier gas helium, 30 cm/sec, constant sample cinnamoµm camphora essential oil diluted 1:10 in n-hexane injection 1 µL, 50:1 split inj. temp. 280 °C detector FlD, 280 °C Analysis Note Cinnamoµm Camphor, al...

GC Analysis of Parabens in Waste Water Effluent on SLB®-5ms after SPME using 85 μm Polyacrylate Fiber

sample preparation SPME (Solid Phase Microextraction) sample/matrix 7 mL water + 1.75 gm NaCl in 10 mL vial spiked with parabens at 1 µg/L desorption process 270 °C2 min extraction immersion, 35 min SPME fiber SPME Assy, 85 µm Polyacrylate FS, 23 ga, AUTO (White), pk/3 (57294-U) column SLB-5ms, 20 m...

GC Analysis of cis/trans Limonene Oxide Enantiomers on Astec® CHIRALDEX® B-PH

column Astec CHIRALDEX B-PH, 30 m x 0.25 mm I.D., 0.12 µm (71023AST) oven 90 °C carrier gas helium, 24 psi sample 3 mg/mL in methylene chloridepeak 1: d-cis or d-trans limonene oxidepeak 2: l-cis and trans limonene oxidepeak 3: d-trans or d-cis limonene oxide injection 1 µL, 80:1 split inj. temp. 25...

GC Analysis of Water (100%Standard) on Watercol™ 1460

column Watercol 1460, 30 m x 0.25 mm I.D., 0.20 µm (29695-U) oven 60 °C (12 min) carrier gas helium, 26 cm/sec sample water injection 0.1 µL, 100:1 split liner 4 mm I.D., split type, cup design inj. temp. 250 °C detector TCD, 200 °C Analysis Note The "Watercol" series of ionic liquid capillary GC co...

GC Analysis of Phthalate Esters on Equity®-5

column Equity-5, 30 m x 0.25 mm I.D., 0.25 µm (28089-U) oven 40 °C (1 min), 10 °C/min to 325 °C carrier gas helium, 1.3 mL/min constant flow sample 50 ng on-column of a custom phthalate ester mix injection 1 µL, splitless (0.75 min) liner 4 mm I.D., single taper inj. temp. 250 °C detector FID Catego...

GC Analysis of Glycols and Diols on Equity®-1

column Equity-1, 30 m x 0.53 mm I.D., 0.50 µm (28068-U) oven 50 °C (2 min), 8 °C/min to 200 °C (2 min) carrier gas helium, 37 cm/sec, constant sample each analyte at 100 ppm in methanol injection 1 µL, pulsed (10 psi until 0.10 min) splitless (0.75 min) liner 2 mm I.D., straight inj. temp. 250 °C de...

GC Analysis of Glycols and Diols on SPB®-1000

column SPB-1000, 30 m x 0.53 mm I.D., 0.50 µm (25445) oven 50 °C (2 min), 8 °C/min to 200 °C (2 min) carrier gas helium, 37 cm/sec, constant sample each analyte 100 ppm in methanol injection 1 µL, pulsed (10 psi until 0.10 min) splitless (0.75 min) liner 2 mm I.D., straight inj. temp. 250 °C detecto...

GC Analysis of Glycols on Nukol™

column Nukol, 15 m x 0.53 mm I.D., 0.5 µm (25326) oven 110 °C, 8 °C/min to 220 °C carrier gas helium, 15 mL/min sample 100 ppm each glycol in water injection 1 µL, direct detector FID, 250 °C Categories Analytical Chromatography, GC Applications, Diols, Glycols Featured Industry Chemicals and Indust...

GC Analysis of Water in Ethanol (0.05%Standard) on Watercol™ 1900

column Watercol 1900, 30 m x 0.25 mm I.D., 0.20 µm (29761-U) oven 80 °C (10 min) carrier gas helium, 26 cm/sec sample water at 0.05% (v/v) in ethanol injection 0.5 µL, 100:1 split liner 4 mm I.D., split type, cup design inj. temp. 250 °C detector TCD, 200 °C Analysis Note The "Watercol" series of io...

GC Analysis of Water in Ethanol (0.05%Standard) on Watercol™ 1910

column Watercol 1910, 30 m x 0.25 mm I.D., 0.20 µm (29711-U) oven 80 °C (10 min) carrier gas helium, 26 cm/sec sample water at 0.05% (v/v) in ethanol injection 0.5 µL, 100:1 split liner 4 mm I.D., split type, cup design inj. temp. 250 °C detector TCD, 200 °C Analysis Note The "Watercol" series of io...

GC Analysis of Water in Ethanol (0.25%Standard) on Watercol™ 1460

column Watercol 1460, 30 m x 0.25 mm I.D., 0.20 µm; two identical columns installed in the same inlet, each going to a separate detector (29695-U) oven 45 °C (4 min), 5 °C/min to 75 °C, 10 °C/min to 220 °C (10 min) carrier gas helium, 20 cm/sec (measured in each column at an oven temperature of 135 ...

GC Analysis of Water in Ethanol (0.25%Standard) on Watercol™ 1910

column Watercol 1910, 30 m x 0.25 mm I.D., 0.20 µm (29711-U) oven 45 °C (4 min), 5 °C/min to 75 °C, 10 °C/min to 190 °C carrier gas helium, 20 cm/sec (measured in each column at an oven temperature of 135 °C) sample water at 0.25% (v/v) in ethanol injection 1 µL, 50:1 split liner 4 mm I.D., split/sp...

GC Analysis of a QC Test Mix Before/After Repeat 100%Water Injections on Watercol™ 1460

column Watercol 1460, 30 m x 0.25 mm I.D., 0.20 µm (29695-U) oven 110 °C carrier gas helium, 26 cm/sec sample 6 analytes in acetone, each at 1 mg/mL except water (at 0.5 mg/mL) injection 1 µL, 100:1 split liner 4 mm I.D., split type, cup design inj. temp. 250 °C detector TCD, 200 °C Analysis Note Th...

GC Analysis of Water in Ethanol (0.5%Standard) on Watercol™ 1460

column Watercol 1460, 30 m x 0.25 mm I.D., 0.20 µm (29695-U) oven 60 °C (12 min) carrier gas helium, 26 cm/sec sample water at 0.05% (v/v) in ethanol injection 0.5 µL, 100:1 split liner 4 mm I.D., split type, cup design inj. temp. 250 °C detector TCD, 200 °C Analysis Note The "Watercol" series of io...

GC Analysis of a QC Test Mix Containing Water on Watercol 1460, 96 °C

column Watercol 1460, 30 m x 0.25 mm I.D., 0.20 µm (29695-U) oven 96 C carrier gas helium, 26 cm/sec sample 6 analytes in acetone, each at 1 mg/mL except water (at 0.5 mg/mL) injection 1 µL, 100:1 split liner 4 mm I.D., split type, cup design inj. temp. 250 °C detector TCD, 200 °C Analysis Note The ...

GC Analysis of a QC Test Mix Before/After Repeat 60%Water Injections on Watercol™ 1460

column Watercol 1460, 30 m x 0.25 mm I.D., 0.20 µm (29695-U) oven 110 °C carrier gas helium, 26 cm/sec sample 6 analytes in acetone, each at 1 mg/mL except water (at 0.5 mg/mL) injection 1 µL, 100:1 split liner 4 mm I.D., split type, cup design inj. temp. 250 °C detector TCD, 200 °C Analysis Note Th...

GC Analysis of Repeat Injections of a QC Test Mix Containing Water on Watercol™ 1900, 96 °C

column Watercol 1900, 30 m x 0.25 mm I.D., 0.20 µm (29761-U) oven 96 C carrier gas helium, 26 cm/sec sample 6 analytes in acetone, each at 1 mg/mL except water (at 0.5 mg/mL) injection 1 µL, 100:1 split liner 4 mm I.D., split type, cup design inj. temp. 250 °C detector TCD, 200 °C Analysis Note The ...

GC Analysis of Water in Ethanol (0.5%Standard) on Watercol™ 1900

column Watercol 1900, 30 m x 0.25 mm I.D., 0.20 µm (29761-U) oven 80 °C (10 min) carrier gas helium, 26 cm/sec sample water at 0.05% (v/v) in ethanol injection 0.5 µL, 100:1 split liner 4 mm I.D., split type, cup design inj. temp. 250 °C detector TCD, 200 °C Analysis Note The "Watercol" series of io...

GC Analysis of a QC Test Mix Containing Water on Watercol 1900, 96 °C

column Watercol 1900, 30 m x 0.25 mm I.D., 0.20 µm (29761-U) oven 96 C carrier gas helium, 26 cm/sec sample 6 analytes in acetone, each at 1 mg/mL except water (at 0.5 injection 1 µL, 100:1 split liner 4 mm I.D., split type, cup design inj. temp. 250 °C detector TCD, 200 °C Analysis Note The "Waterc...

GC Analysis of Water in Ethanol (60%Standard) on Watercol™ 1460

column Watercol 1460, 30 m x 0.25 mm I.D., 0.20 µm (29695-U) oven 60 °C (12 min) carrier gas helium, 26 cm/sec sample water at 80% (v/v) in ethanol injection 0.1 µL, 100:1 split liner 4 mm I.D., split type, cup design inj. temp. 250 °C detector TCD, 200 °C Analysis Note The "Watercol" series of ioni...

GC Analysis of a QC Test Mix Before/After Repeat 60%Water Injections on Watercol™ 1910

column Watercol 1910, 30 m x 0.25 mm I.D., 0.20 µm (29711-U) oven 163 °C carrier gas helium, 26 cm/sec sample 6 analytes in acetone, each at 1 mg/mL except water (at 0.5 mg/mL) injection 0.5 µL, 100:1 split liner 4 mm I.D., split type, cup design inj. temp. 250 °C detector TCD, 200 °C Analysis Note ...

GC Analysis of Repeat Injections of a QC Test Mix Containing Water on Watercol™ 1910, 96 °C

column Watercol 1910, 30 m x 0.25 mm I.D., 0.20 µm (29711-U) oven 96 C carrier gas helium, 26 cm/sec sample 6 analytes in acetone, each at 1 mg/mL except water (at 0.5 mg/mL) injection 1 µL, 100:1 split liner 4 mm I.D., split type, cup design inj. temp. 250 °C detector TCD, 200 °C Analysis Note The ...

GC Analysis of Water (0.05-1%Calibration Curve) on Watercol™ 1460

column Watercol 1460, 30 m x 0.25 mm I.D., 0.20 µm (29695-U, two identical columns installed in the same inlet, each going to a separate detector) oven 45 °C (4 min), 5 °C/min to 75 °C, 10 °C/min to 220 °C (10 min) carrier gas helium, 20 cm/sec (measured in each column at an oven temperature of 135 ...