Trace determination of nitrated polycyclic aromatic hydrocarbons using liquid chromatography with on-line electrochemical reduction and fluorescence detection

Determination of Polycyclic Aromatic Hydrocarbons in Water by Solid-Phase Microextraction and Liquid Chromatography

“…Sodium monochloroacetate (an organic salt) is often used as a buffer system in the mobile phase of liquidchromatographic separation. Kuo 22 and Long 24 et al indicated that the use of sodium monochloroacetate can improve the stability, resolution, and sensitivity of organic analytes. Sodium monochloroacetate was simultaneously used as an eluent buffer and extract accelerant in the present work.…”

“…The technique of efficient separation has been described in several papers. 21,22 This paper explores the potential of the SPME-HPLC-FLD method for determining the concentration of PAHs in aqueous environments, since SPME was developed as an effective pretreatment method to extract five PAHs from water. In this report, the SPME parameters and optimum conditions for HPLC/FLD analysis of water phase PAHs are discussed in detail.…”

Determination of 1-nitropyrene in low volume ambient air samples by high-performance liquid chromatography with fluorescence detection

“…The detection limit for 1-NP was 0.32 fmol/injection. This value is two orders of magnitude lower than the values obtained with recent HPLC methods with on-line reduction and fluorescence detection [21,22], the LC-atmospheric pressure chemical ionization (APCI)-MS method [23] and HPLC with electrochemical detection [24], and comparable…”

Nitrated Polycyclic Aromatic Hydrocarbons in the Environment: Formation, Occurrences and Analysis

“…41 As an alternative to this method, it is possible to reduce NPAHs electrochemically. A complete HPLC/EC/FLD method to determine NPAHs (1,3-, 1,6-, 1,8-DNP, 1-NP) in airborne particulate matter at pg trace levels using HPLC/EC/FLD was described by C-T Kuo et al 42 TLC (thin layer chromatography) can be used to identify NPAHs in complex extracts of environmental samples previously separated by HPLC. Dichloromethane extracts of particulate matter were separated through a semi-preparative silica gel HPLC column, five fraction were isolated and analysed by TLC (silica gel plates) and GC-MS for confirmation.…”