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78 matches found for carbon

HPLC Analysis of Structural Isomers on Discovery® Zr-Carbon

column Discovery Zr-Carbon, 15 cm x 4.6 mm I.D., 3 µm particles (65730-U) column temp. 60 °C mobile phase [A] water; [B] acetonitrile; (20:80, A:B) flow rate 0.5 mL/min injection 10 µL detector UV, 254 nm Categories Analytical Chromatography, Semivolatiles Featured Industry Chemicals and Industrial ...

HPLC Analysis of Acrylic Acid Derivatives on Discovery® Zr-Carbon

column Discovery Zr-Carbon, 7.5 cm x 2.1 mm I.D., 3 µm particles (65726-U) column temp. 50 °C mobile phase [A] 30 mM phosphoric acid, pH 1.9; [B] acetonitrile flow rate 0.42 mL/min sample acrylate @ 0.05 g/L, methacrylate @ 0.05 g/L, sulfopropylacrylate @ 0.02 g/L, sulfopropylmethylacrylate @ 0.02 g...

HPLC Analysis of Sulfonamide Positional Isomers on Discovery® Zr-Carbon C18

column Discovery Zr-Carbon C18, 15 cm x 4.6 mm I.D., 3 µm particles (65706-U) column temp. 80 °C mobile phase [A] 10mM diethylamine, pH 10.8; [B] acetonitrile; flow rate 1.5 mL/min injection 5 µL detector UV, 240 nm Categories Analytical Chromatography, Pharmaceutical Analysis, Antibiotics Featured ...

HPLC Analysis of Xylene Isomers on Discovery® Zr-Carbon

column Discovery Zr-Carbon, 15 cm x 4.6 mm I.D., 3 µm particles (65730-U) column temp. 30 °C mobile phase [A] water: [B] acetonitrile; (50:50, A:B) flow rate 1 mL/min sample o-xylene, m-xylene, p-xylene (290 µg/mL) injection 1 µL detector UV, 254 nm Categories Analytical Chromatography, Semivolatile...

HPLC Analysis of NSAIDs on Discovery® Zr-Carbon C18

column Discovery Zr-Carbon C18, 15 cm x 4.6 mm I.D., 3 µm particles (65706-U) column temp. 80 °C mobile phase [A] 50 mM phosphoric acid (pH 1.75): [B] acetonitrile; (50:50, A:B) flow rate 4 mL/min sample ketoprofen, ibuprofen, naproxen, each 1 mg/mL injection 1 µL detector UV, 254 nm Categories Anal...

Determination of Water Content in Carbon tetrachloride, Tetrachloromethane Using Karl Fischer Titration

Halogenated hydrocarbons Halogenated hydrocarbons Halogenated hydrocarbons can in most cases be titrated by the Karl Fischer method without any problems as is the case for hydrocarbons. No interferences are to be expected from the chemical structure. To overcome solubility problems of unpolar or wea...

GC Analysis of Oxygen, Nitrogen, and Carbon Dioxide on Carboxen®-1010 PLOT

column Carboxen-1010 PLOT, 30 m x 0.53 mm I.D. (25467) oven 35 °C (7.0 min), 24 °C/min to 225 °C carrier gas helium, 3.0 mL/min sample Oxygen at 20% and carbon dioxide at 1.0% in nitrogen injection 10 µL, direct using a sample valve, 150 °C inj. temp. 200 °C detector TCD, 230 °C, Methanizer, 375 °C,...

GC Analysis of Pesticides in Spinach on SLB®-5ms after QuEChERS Extraction then SPE Clean-up using Supel™ Sphere Carbon/NH2

sample preparation Solid Phase Extraction (SPE) sample/matrix spinach extract extraction process to 10 g homogenized spinach add 10 mL acetonitrile and shake 1 min, add contents of Supel QuE acetate tube (55234-U), shake 1 min and centrifuge, transfer extract to dSPE tube, (add 1 g anhydrous MgSO4, ...

TLC Analysis of Polystyrene 800 on TLC pre-coated plate silica gel 60

plate TLC pre-coated plate silica gel 60 F 254 with concentrating zone Mobile phase carbon tetrachloride migration distance 7 cm chamber normal chamber without chamber saturation detection in-situ evaluation with TLC/HPTLC scanner (Camag) UV 254 nm Application No. TLC2018297 Featured Industry Chemic...

TLC Analysis of Nitrophenols on HPTLC Pre-Coated Plate CN F254s

plate: HPTLC pre-coated plate CN F 254s (1.16464.0001) eluent: [A] carbon tetrachloride; [B] methanol; (48:2, A:B) migration distance: 7 cm chamber: normal chamber without chamber saturation sample: 0.2 μL detector: (in situ evaluation with TLC/HPTLC scanner (Camag) UV 254 nm) suitability applicatio...

SFC Analysis of Warfarin™ Enantiomers on Astec® Cellulose DMP, Methanol Gradient

column Astec Cellulose DMP, 15 cm x 4.6 mm I.D., 5 µm particles (51098AST) column temp. 35 °C mobile phase [A] carbon dioxide; [B] methanol; Gradient of 5-65% methanol in 3 min., hold for 1 min flow rate 4 mL/min pressure 1450 psi (100 bar) sample warfarin injection 5 µL detector UV, 220 nm Analysis...

GC Analysis of Permanent Gases on Carboxen®-1010 PLOT

column Carboxen-1010 PLOT, 30 m x 0.53 mm I.D. (25467) oven 35 °C (7.0 min), 24 °C/min to 225 °C carrier gas helium, 3.0 mL/min sample Oxygen, carbon monoxide, methane, and carbon dioxide, each at 1.0% in nitrogen injection 10 µL, direct using a sample valve, 150 °C inj. temp. 200 °C detector TCD, 2...

GC Analysis of Permanent Gases on Mol Sieve 5A PLOT

column Mol Sieve 5A PLOT, 30 m x 0.53 mm I.D. (25463) oven 65 °C carrier gas helium, 10.0 mL/min sample Oxygen, methane, and carbon monoxide, each at 1.0% in nitrogen injection 10.0 mu, direct using a sample valve inj. temp. 200 °C detector TCD, 230 °C Categories Analytical Chromatography, GC Applic...

GC Analysis of Total Petroleum Hydrocarbons (TPH) 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 70 °C (0.5 min), 20 °C/min to 360 °C (1 min) carrier gas hydrogen, 2.5 mL/min constant sample TPH Mix 3, each analyte at 1000 µg/mL in carbon disulfide (861394-U) injection 0.50 µL, 200:1 split liner 2 mm I.D. straight inj. temp. 275 °C det...

GC Analysis of Total Petroleum Hydrocarbons (TPH) on SLB®-5ms

column SLB-5ms, 30 m x 0.25 mm I.D., 0.25 µm (28471-U) oven 45 °C (3 min), 20 °C/min to 360 °C (10 min) carrier gas helium, 1.3 mL/min. constant sample TPH Mix 3, each analyte at 1000 µg/mL in carbon disulfide (861394-U) injection 1.0 µL, 100:1 split liner 2 mm I.D. straight inj. temp. 275 °C detect...

LC/MS (TOF) Analysis of 2C Amine Drugs of Abuse on Ascentis® Express HILIC

column Ascentis Express HILIC, 5 cm x 2.1 mm I.D., 2.7 µm particles (53934-U) column temp. 35 °C mobile phase 2 mM ammonium formate in 90:10 (v:v) acetonitrile:water flow rate 0.4 mL/min pressure 943 psi (65 bar) sample 300 ng/mL in acetonitrile injection 2 µL detector TOF/MS Analysis Note The 2C am...

ASTM D3612-96: GC Analysis of Transformer Gas on Carboxen®-1010 PLOT

column Carboxen-1010 PLOT, 30 m x 0.53 mm I.D. (25467) oven 35 C (8.5 min), 24 °C/min to 250 °C carrier gas argon, 3.0 mL/min sample 9 analytes, each at 500 ppm injection 10.0 µLdirect using a sample valve, 150 °C inj. temp. 200 °C detector TCD, 230 °C, Methanizer, 375 C, and FID, 230 °C in series C...

GC Analysis of a 12-Component Sulfur Compound Mix on SLB®-IL59

column SLB-IL59, 30 m x 0.25 mm I.D., 0.20 µm (28891-U) oven 30 °C (4 min), 10 °C/min to 300 °C carrier gas helium, 30 cm/sec constant sample 12 sulfur compounds, neat mix injection 0.2 µLsplit 100:1 liner 4 mm I.D., split/splitless type, dual taper design inj. temp. 250 °C detector MSD, interface a...

LC/MS (NARP-LC-APCI(+)-MS) Analysis of Triacylglycerols in Sparus aurata Fractions 3, 4, and 5 Isolated by 1D Silver Ion on Ascentis® Express C18, Mass Scan Number 14,174 (35.43 min)

column Ascentis Express C18, 15 cm x 4.6 mm I.D., 2.7 µm particles (53829-U) mobile phase [A] acetonitrile; [B] 2-propanol (IPA) gradient 0 to 70% B in 50 min; held at 70% B for 5 min; to 0% B in 1 min flow rate 1 mL/min sample fish tissue extracted by Folch method, 1D (Ag+ion) dried fractions disso...

LC/MS (TOF) Analysis of 2C Amines Drugs of Abuse in Urine on Ascentis® Express HILIC after Solid Phase Extraction (SPE) using Supel™-Select SCX

sample preparation SPE (Solid Phase Extraction) sample/matrix spiked urine, 1 mL SPE well plate Supel-Select SCX SPE 96-well Plate, 30 mg/well (575664-U) condition 1 mL methanol, then 1 mL 0.1% formic acid in water washing 2 x 1 mL 10% methanol in water, 2 x 1 mL 1% formic acid in methanol elution 2...

US EPA Method 524.2: GC Analysis of Volatiles on VOCOL® (105 m x 0.53 mm I.D.) after Purge & Trap using "K" Trap

purge trap VOCARB 3000 (21066-U) purge 40 mL/min for 11 min dry purge 3 min desorption process 250 C for 4 min bake 280 °C for 10 min column VOCOL, 105 m x 0.53 mm I.D., 3.0 mum (25358) oven 35 C (10 min), 4 C/min to 200 C (10 min) carrier gas helium, 10 mL/min sample 10 ppb each component in 5 mL w...

High-Resolution U/HPLC Separation of Peptides BIOshell™ A160 Peptide Phenyl-Hexyl

High efficiency separation of peptides with orthogonal selectivity to alkyl-bonded phases due to rigid aromatic ring (shape selectivity). The BIOshell™ A160 Peptide Phenyl-Hexyl bonded phase is based on fused-core particles. BIOshell™ A160 Peptide Phenyl-Hexyl provides a stable, reversed phase packi...

US EPA Method TO-17: GC Analysis of Volatiles on VOCOL® after Collection/Desorption using Air Toxics Tube

sample/matrix 10-50 ng each analyte introduced onto tube (calibration standard, Cat. No. 41900) adsorbent tube Air Toxics (glass) (25086) column VOCOL, 60 m x 0.25 mm I.D., 1.5 µm film (24154) oven 37 °C (4 min) to 200 °C at 4 °C/min, hold 10 min carrier gas helium, 2 mL/min detector FID Categories ...

High Resolution U/HPLC Separation of Monoclonal Antibodies on BIOshell™ IgG 1000 Å C18

High resolution separtion of monoclonal antibodies (mAbs), mAb variants, and other, high molecular weight, hydrophobic proteins. The BIOshell™ IgG 1000 Å C18 column, based on Fused-Core® particles, is non-polar in nature. Utilizing a combination of water and methanol or acetonitrile with an ion pair...

US EPA Method 624: GC Analysis of Volatiles on SPB®-624 after Purge & Trap using "K" Trap, Fast GC Analysis

sample/matrix each analyte at 50 ppb in 5 mL water purge trap VOCARB 3000 "K" purge 40 mL/min at 25 °C for 11 min dry purge 2 min desorption preheat 205 °C desorption process 150 mL/min at 210 °C for 2 min bake 260 °C for 10 min column SPB-624, 20 m x 0.18 mm I.D., 1.0 µm (28662-U) oven 40 °C (1 min...

Analytical Method: Iron (total) in mineral oil

Instrumens and Reagents: Cat.No. 173016 Spectroquant® VIS Spectrophotometer Prove 100 or Cat.No. 173017 Spectroquant® UV/VIS Spectrophotometer Prove 300 or Cat.No. 173018 Spectroquant® UV/VIS Spectrophotometer Prove 600 or Cat.No. 109748 Spectroquant® Photometer NOVA 30 or Cat.No. 109751 Spectroquan...

High-Resolution U/HPLC Separation of Monoclonal Antibodies with the BIOshell™ IgG 1000 Å Diphenyl

High resolution U/HPLC separation of monoclonal antibodies (mAbs), mAb variants, and other large proteins with orthogonal selectivity to alkyl-bonded phases. The BIOshell™ IgG 1000 Å Diphenyl column, based on Fused-Core® particles, is non-polar in nature. Due to the aromatic nature of the phase, bot...

US EPA Method 624: GC Analysis of Volatiles on VOCOL® (60 m x 0.53 mm I.D.) after Purge & Trap using "K" Trap

sample/matrix 20 ppb each component in 5 mL water (25381) purge trap VOCARB 3000 (21066-U) purge 35 mL/min for 11 min dry purge 3 min desorption temp. 250 °C for 4 min bake 260 °C for 10 min column VOCOL®, 60 m x 0.53 mm I.D.,3.0 µm (25381) oven 35 °C (4 min), 6 C/min to 200 °C carrier gas helium, 7...

HPLC Determination of Free Undecenoic Acid in Antifungal Powder on Ascentis® Express C18

sample preparation Sonicate samples for 30 minutes in acetonitrile, filter with 33 mm Hydrophobic PTFE, 0.45 μm filter, dilute with mobile phase. column Ascentis Express C18 2.7 μM 10 cm x 2.1 mm particles (53823-U) column temp. 30 °C mobile phase 40/60, [A]/[B]; [A] 95/5 water/acetonitrile in 0.1% ...

US EPA Method 8260: GC Analysis of Volatiles on VOCOL® after Purge & Trap using "K" Trap

sample/matrix each analyte at 50 ppb in 5 mL water purge trap VOCARB 3000 "K" purge 40 mL/min at 25 °C for 11 min dry purge 2 min desorption preheat 205 °C desorption process 40 mL/min at 210 °C for 2 min bake 260 °C for 10 min column VOCOL, 30 m x 0.25 mm I.D., 1.5 µm (24205-U) oven 40 °C (2 min), ...