MilliporeSigma

US EPA Method 625: GC Analysis of Semivolatiles on SLB®-5ms

US EPA Method 625: GC Analysis of Semivolatiles on SLB®-5ms suitable for GC

Materials

Analytical column

Product No.
Description
Pricing

SLB®-5ms Capillary GC Column

L × I.D. 30 m × 0.25 mm, df 0.25 μm

SLB®-5ms Capillary GC Column

L × I.D. 30 m × 0.25 mm, df 0.50 μm

SLB®-5ms Capillary GC Column

L × I.D. 20 m × 0.18 mm, df 0.18 μm

Guard column

Product No.
Description
Pricing

Intermediate Polar Fused Silica Tubing

L × I.D. 5.0 m × 0.25 mm

accessory

Product No.
Description
Pricing

Wheaton wide-mouth bottle

capacity 32 oz (1000 mL), white polypropylene cap, PTFE flat liner, amber

Supeltex M-2B Double-Tapered Ferrule

I.D. 0.4 mm, 0.10-0.25 mm to like I.D. Column, pkg of 2 ea

Capillary Column Butt Connector

body only (ferrules not included)

standard

Product No.
Description
Pricing

N-Nitrosodiphenylamine solution

certified reference material, 5000 μg/mL in methanol

Perfluorotributylamine (PFTBA)

analytical standard

EPA 8270 GC-MS Tuning Solution II

certified reference material, 1000 μg/mL each component in dichloromethane

EPA TCL Benzidines Mix

certified reference material, 2000 μg/mL each component in methanol

EPA 625 Semivolatile Calibration Mix

1000 μg/mL each component in methylene chloride: benzene (3:1), analytical standard

EPA CLP Semivolatiles Surrogate Standards Mix

certified reference material, 4000 μg/mL each component in methylene chloride

EPA 8270 Semivolatile Internal Standard Mix

certified reference material, TraceCERT®, 2000 μg/mL each component in methylene chloride, ampule of 2 × 1 mL

CONDITIONS

column

SLB-5ms, 30 m x 0.25 mm I.D., 0.25 μm (28471-U)

oven

40 °C (2 min), 22 °C/min to 240 °C, 10 °C/min to 330 °C (5 min)

inj. temp.

250 °C

MSD interface

330 °C

scan range

m/z = 40-450

carrier gas

helium, 1 mL/min constant (10 min), ramped to 1.5 mL/min, hold for remainder of run

injection

1 μL, pulsed (15 psi until 0.10 min) splitless (0.50 min)

liner

4 mm I.D., single taper

sample

79 component semivolatile standard (each at 50 ppm), plus 6 internal standards (each at 40 ppm) in methylene chloride

Description

Legal Information

SLB is a registered trademark of Merck KGaA, Darmstadt, Germany