Application of automated on-line microbore high-performance liquid chromatography/capillary gas chromatography to diesel exhaust particulates

Journal Article · Sun Nov 01 04:00:00 EST 1987 · Anal. Chem.; (United States)

DOI:https://doi.org/10.1021/ac00148a011· OSTI ID:5676869

Davies, I L; Raynor, M W; Williams, P T; Andrews, G E; Bartle, K D

Automated on-line multidimensional high-performance liquid chromatography (HPLC)/capillary gas chromatography (GC) is described. This technique is used to isolate and detect trace level polycyclic aromatic compounds (PAC) in a standard solution and in two exhaust particulate extracts. The particulates are collected from a single cylinder diesel engine run on diesel and kerosene fuels, respectively. Group-type separation of the samples is obtained by normal-phase microbore HPLC with direct on-line transfer of the aromatic fraction into the GC for analysis. The HPLC/GC interface is a 10-port valve with a 100-..mu..L sample loop and a 50-..mu..L wash loop. A 25-m fused-silica retention gap links the interface directly to the GC analytical column, providing a zone for solvent evaporation and solute refocusing by the solvent effects. The system, which is totally automated by pneumatically actuated valves controlled by the HPLC pump software program, provides a rapid, labor-saving, and reproducible technique for the determination of trace level components in a complex matrix.

• Research Organization: Univ. of Leeds, England
• OSTI ID: 5676869
• Journal Information: Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 59:21; ISSN ANCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102 -- Chemical & Spectral Procedures
400105* -- Separation Procedures
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AROMATICS
BLOOD VESSELS
BODY
CAPILLARIES
CARDIOVASCULAR SYSTEM
CHEMICAL ANALYSIS
CHROMATOGRAPHY
DATA
DIESEL FUELS
DISPERSIONS
EXHAUST GASES
EXPERIMENTAL DATA
FLUIDS
FUELS
GAS CHROMATOGRAPHY
GASEOUS WASTES
GASES
HYDROCARBONS
INFORMATION
KEROSENE
LIQUID COLUMN CHROMATOGRAPHY
LIQUID FUELS
MIXTURES
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANS
PARTICLES
PARTICULATES
PETROLEUM PRODUCTS
POLYCYCLIC AROMATIC HYDROCARBONS
QUANTITATIVE CHEMICAL ANALYSIS
SEPARATION PROCESSES
SOLUTIONS
TRACE AMOUNTS
WASTES