Table 1. Summary of INTEX-A in Situ Observations Used in This Study


Species	Instrument and Methods	Reference
CO	(1) diode laser spectrometer and (2) gas chromatography/mass spectrometry (GC/MS)	(1) Bartlett et al. [2003] and (2) Blake et al. [2003]
O3	chemiluminescence	Browell et al. [2003]
HNO3	(1) chemical ionization mass spectrometer (CIMS) and (2) mist chamber/ion chromatography	(1) Crounse et al. [2006] and (2) Dibb et al. [2003b]
PAN	gas chromatography with cryofocusing	Singh et al. [1994]
NO	chemiluminescence	Ren et al. [2006]
OH, HO2	laser induced fluorescence (LIF)	Ren et al. [2006]
NO2, SigmaPNs	LIF	Cohen et al. [2000]
H2O2	(1) CIMS and (2) high-pressure liquid chromatography (HPLC)/enzyme fluorescence detection (EFD)	1) Crounse et al. [2006] and (2) Heikes et al. [1996]
CH3OOH	HPLC/EFD	Heikes et al. [1996]
HNO4, SO2	CIMS	Huey et al. [2004]
CH4	diode laser spectrometer	Bartlett et al. [2003]
HCHO	tunable diode laser absorption spectroscopy (TDLAS)	Fried et al. [2003]
Acetone, acetaldehyde	photo ionization detector	Singh et al. [1994]
Methanol, ethanol, CH3CN	reduction gas detector	Singh et al. [1994]
HCN	(1) reduction gas detector and (2) CIMS	(1) Singh et al. [2003] and (2) Crounse et al. (unpublished manuscript, 2007)
NMHC/halocarbons	GC/MS	Blake et al. [2003]
7Be	Gamma-spectroscopy and Alpha-spectroscopy	Dibb et al. [2003b]
NO3-, SO42-, C2O42-, NH4+, Na+, K+, Mg2+, Ca2+	ion chromatography analysis	Dibb et al. [2003a]
Fine sulfate aerosols	mist chamber/ion chromatography	Dibb et al. [2003a]