G005265

US EPA Method 8260: GC Analysis of Volatiles on SPB^®-624 after Purge & Trap using "K" Trap, Fast GC Analysis

suitable for GC

Proprietà

• tecniche: gas chromatography (GC): suitable
• Parametri analitici: sample/matrix: each analyte at 50 ppb in 5 mL water; purge trap: VOCARB 3000 K (24940-U); purge: 40 mL/min at 25 °C for 11 min; dry purge: 2 min; desorption preheat: 205 °C; desorption temp.: 210 ºC for 1 min; desorption flow: 150 mL/min; bake: 260 °C for 10 min; transfer line/valve temp.: 110 °C; column: SPB-624, 20 m x 0.18 mm I.D., 1.0 μm (28662-U); oven: 40 °C (1 min), 11 °C/min to 125 °C, 35 °C/min to 230 °C (2 min); inj. temp.: 150 °C; MSD interface: 220 °C; scan range: m/z = 35-400; carrier gas: helium, 1.5 mL/min; injection: 100:1 split; liner: 0.75 mm I.D. SPME
• applicazioni: environmental

Descrizione

Risultati analitici

US EPA Method 8260 describes the analysis of volatile organic compounds in solid wastes and ground waters. This application illustrates the analysis of many compounds commonly analyzed by this method using purge and trap coupled to GC-MS. A short, narrow I.D. SPB-624 column was used to shorten the analysis time to under 11 minutes. A high desorb flow through the trap was necessary to prevent band broadening of the gaseous VOCs. This was accomplished by increasing the split ratio, thus increasing the total flow through the trap during desorb.

Note legali

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

Analita

Dichlorofluoromethane
Chloromethane
Vinyl chloride
Bromomethane
Chloroethane
Trichlorofluoromethane
Acetone
Iodomethane
Dichloromethane
trans-1,2-Dichloroethylene
1,1-Dichloroethane
2-Butanone
2,2-Dichloropropane
Bromochloromethane
Chloroform
1,1,1-Trichloroethane
1,1-Dichloropropene
Carbon tetrachloride
Benzene
1,2-Dichloroethane
Trichloroethylene
1,2-Dichloropropane
Dibromomethane
Bromodichloromethane
cis-1,3-Dichloropropene
4-Methyl-2-pentanone
Toluene
trans-1,3-Dichloropropene
1,3-Dichloropropane
2-Hexanone
Dibromochloromethane
Chlorobenzene
1,1,1,2-Tetrachloroethane
Ethylbenzene
m-Xylene, analytical standard
o-Xylene
Styrene
Bromoform
Cumene
cis-1,4-Dichloro-2-butene
Bromobenzene
1,1,2,2-Tetrachloroethane
1,2,3-Trichloropropane
trans-1,4-Dichloro-2-butene
Mesitylene
Pentachloroethane
tert-Butylbenzene
1,2,4-Trimethylbenzene
sec-Butylbenzene
1,3-Dichlorobenzene
p-Cymene
1,4-Dichlorobenzene
1,2-Dichlorobenzene
Butylbenzene
1,2-Dibromo-3-chloropropane
1,2,4-Trichlorobenzene
Naphthalene
1,2,3-Trichlorobenzene
p-Xylene, analytical standard
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