Gel Free SPE Cartridge

Do you need a quick sample preparation method for gel and cream products?

Orochem offers new Gel Free SPE cartridges to remove carbomer from gel and cream products. There are two types: Gel Free LC SPE cartridges for sample preparation before injection to HPLC; while Gel Free GC SPE cartridges for GC samples.  It is a one-step SPE method and no method development is required. 
We have developed and validated organic impurities in hand sanitizer gel testing methods using Gel Free GC SPE cartridges.

Compounds:

acetaldehyde, acetone, ethyl acetate, diethyl acetal, methanol, benzene, 2-butanol,n-propanol, iso-butanol, n-butanol, iso-amylalcohol, n-amyl alcohol

Gel Free SPE Cartridge

SPE EXTRACTION METHOD:

Gel Free SPE Cartridge

GC-FID METHOD

Column: Agilent DB-FATWAX, 30 m, 0.25 mm diameter, 0.25 µm film Inlet Temp: 250°C Detector Temp: 250 °C
Oven Temp Gradient Table
Rate (°C/min) Value (°C) Hold Time (min)
Initial 32 10
Ramp1 10 100 0
Ramp2 5 220 5
Column flow rate: 0.7 mL/min
Injection volume: 1 pL
Run time: 29.8 min
Gel Free SPE Cartridge
Gel Free SPE Cartridge
Analyte Retention Time (min)
Acetaldehyde 3.24
Acetone 4.42
Ethylacetate 6.07
Diethyl acetal 6.20
Methanol 6.48
Benzene 7.85
2-Butanol 12.70
n-Propanol 13.05
Iso-Butanol 14.58
n-Butanol 15.83
Iso-Amyl alcohol 17.18
n-Amyl alcohol 17.91
Analyte Linear range (ppm)
Acetaldehyde 25-500
Acetone 30-2000
Ethylacetate 25-1000
Diethyl acetal 25 -1000
Methanol 25 -1000
Benzene 2-80
2-Butanol 25-1000
n-Propanol 25-1000
Iso-Butanol 30-2000
n-Butanol 25-1000
Iso-Amyl alcohol 30-2000
n-Amyl alcohol 25-1000

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