16-Hr Laboratory Air Sample with radiello 165

PeakstR (min)
1.Formaldehyde-DNPH2.80
2.Acetaldehyde-DNPH3.47
3.Acetone-DNPH4.55
4.n-Butyraldehyde-DNPH6.58
5.Hexanal-DNPH10.10
image
LC_AR0508
ColumnRaptor C18 (cat.# 9304A65)
Dimensions:150 mm x 4.6 mm ID
Particle Size:2.7 µm
Pore Size:90 Å
Temp.:30 °C
SampleLaboratory air sample
Diluent:2 mL acetonitrile extract
Inj. Vol.:5 µL
Mobile Phase
A:Water
B:Methanol:acetonitrile (650:50)*
Time (min)Flow (mL/min)%A%B
0.000.83070
5.000.82575
11.000.81090
11.010.80100
12.000.80100
12.010.83070
14.000.83070
DetectorUV/Vis @ 365, 4.8 nm
Preconcentratorradiello 165
InstrumentWaters ACQUITY UPLC H-Class
NotesThe radiello 165 passive air sampler (RAD165) utilizes a stainless steel net cartridge filled with 2,4-dinitrophenylhydrazine (DNPH) coated Florisil adsorbent. Airborne carbonyls react with the DNPH to form stable hydrazones. The derivatives were subsequently extracted for 30 minutes with 2 mL of acetonitrile. The extract was then analyzed by LC-UV.

*Mobile phase B was prepared by combining 650 mL methanol and 50 mL acetonitrile.
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