This is the metadata for: MUMBA_Carbonyls_2013-02-04_2013-02-15 (doi:10.1594/PANGAEA.871983) Measurement: Formaldehyde, acetaldehyde, propanal, benzaldehyde, glyoxal, methylglyoxal and hexanal Instrument/Method: Measurement of aldehydes and ketones using Supelco LpDNPH S10 cartridges followed by high performance liquid chromatography (HPLC) with diode array detection (DAD) Owner: CSIRO Campaign: MUMBA Location: Main measurement site - Nissan Hut Kids Campus / Campus East, Wollongong (-34.3972, 150.8996) Dates of operation: 04-Feb-2013 to 15-Feb-2013 Original measurement time resolution: 04:00-08:59, 10:00-17:59 and 18:00-03:59 (UTC+10) Averaging time: 5, 8 or 10 hours Units: ppbv Inlet/Installation detail (inc. flow rate if relevant): Ambient air sampled with 1/4" PTFE inlet installed at a height of ~10m and protected by an inverted teflon cup Sample collection detail: Carbonyls were collected on to cooled (8 degrees Celcius) Supelco LpDNPH S10 cartridges at a flow rate of 1.4 L/minute. Samples were refrigerated immediately after sampling until analysis. Sample analysis detail: The dnph derivatives were extracted from the cartridge in 2.5 mL of acetonitrile and analysed by high performance liquid chromatography (HPLC) with diode array detection (DAD). Further details of this method can be found in Lawson et al 2015. Issues: Condensation formed inside the cartridges, as shown by the extraction volumes (ranging from 2.6 to 3.3 mL). Corrections: No corrections applied, but a limited number of species are reported. Formaldehyde is within 15% of that measured by PTR-MS. Acetaldehyde is most likely undereported (see Dunne et al 2017). Its measurement was affected by water - values are only reported for extraction volumes below 2.9 mL. Reported acetaldehyde values are ~50% of those reported by PTR-MS (R2 = 0.93). Other species were not tested against other measurements, although glyoxal was found to agree with DOAS in Lawson et al 2015. Detection limits were determined from analysis of blank cartridges Sampling_Period Formaldehyde Acetaldehyde Propanal Benzaldehyde Glyoxal Methylglyoxal Hexanal UTC+10 ppbv ppbv ppbv ppbv ppbv ppbv ppbv 04:00-08:59 0.019 0.018 0.011 0.003 0.011 0.006 0.008 10:00-17:59 0.012 0.011 0.007 0.002 0.007 0.003 0.005 18:00-03:59 0.009 0.009 0.006 0.002 0.006 0.003 0.004 Missing or bad data and values under the detection limit are reported as empty fields File headers: sample_ID cartridge number date_ON time sampling started yyyy-mm-ddTHH:MM:SSz date_OFF time sampling ended yyyy-mm-ddTHH:MM:SSz total sampling time (min) total amount of time air was passed through the cartridge in minutes flow rate (L/min) flow rate at which air passed through the cartridge in L/minute volume (L) total volume of air sampled in litres extraction volume (mL) total volume extracted from cartridge (2.5 mL acetonitrile + water from condensation) in mL formaldehyde (ppb) volume mixing ratio of formaldehyde in parts per billion acetaldehyde (ppb) volume mixing ratio of acetaldehyde in parts per billion propanal (ppb) volume mixing ratio of propanal in parts per billion benzaldehyde (ppb) volume mixing ratio of benzaldehyde in parts per billion glyoxal (ppb) volume mixing ratio of glyoxal in parts per billion methyl glyoxal (ppb) volume mixing ratio of methyl glyoxal in parts per billion hexanal (ppb) volume mixing ratio of hexanal in parts per billion Contact(s): Paul Selleck paul.w.selleck@csiro.au Elise-Andree Guerette eag873@uowmail.edu.au References Dunne, E., I. E. Galbally, M. Cheng, P. Selleck, S. B. Molloy and S. J. Lawson (2017). "Comparison of VOC measurements made by PTR-MS, Adsorbent Tube/GC-FID-MS and DNPH-derivatization/HPLC during the Sydney Particle Study, 2012: a contribution to the assessment of uncertainty in current atmospheric VOC measurements." Atmos. Meas. Tech. Discuss. 2017: 1-24, doi: 10.5194/amt-2016-349. Lawson, S. J., P. W. Selleck, I. E. Galbally, M. D. Keywood, M. J. Harvey, C. Lerot, D. Helmig and Z. Ristovski (2015). "Seasonal in situ observations of glyoxal and methylglyoxal over the temperate oceans of the Southern Hemisphere." Atmospheric Chemistry and Physics 15(1): 223-240, doi: 10.5194/acp-15-223-2015.