Hollow-Fibre Liquid-Phase Microextraction for the Determination of Polycyclic Aromatic Hydrocarbons in Johannesburg Jukskei River, South Africa

Status of PAHs in Environmental Compartments of South Africa: A Country Report

“…Das et al (24) also looked at PAHs in a shallow lake (Zeekoevlei lake) in the Western Cape Province and found total concentrations of 19.16 ng −1 in winter and 0.09 ng −1 in summer. These reported concentrations are much lower than those of Sibiya et al (17,18). The different total concentrations reported highlight the different sources and fate of these compounds in the environment.…”

“…Total concentrations of PAHs determined from river water from the Venda region rank third (11.5-142.8 μg −1 ). Total concentrations reported by Sibiya et al (17,18) from surface waters in the Johannesburg area with ranges of 0.173-2.400 μg −1 and 0.257-0.886 μg −1 are the lowest. Das et al (24) also looked at PAHs in a shallow lake (Zeekoevlei lake) in the Western Cape Province and found total concentrations of 19.16 ng −1 in winter and 0.09 ng −1 in summer.…”

“…Concentrations of total PAHs determined in runoff water from the Venda region, Limpopo Province are the highest with ranges of 28.7-3192.6 μg −1 . Those reported from the Klip and Vaal rivers of the Johannesburg area (not included in the table) in Gauteng Table 1: Concentration of PAHs in runoff water and river water (15,17,18) Runoff water 1 River water 1 PAH Range (μg −1 ) R a n g e( μg −1 ) Indene Province were second highest with ranges of 92-1307 μg −1 (20). Total concentrations of PAHs determined from river water from the Venda region rank third (11.5-142.8 μg −1 ).…”

“…Downloaded by [RMIT University] at 00: 15 13 August 2015 PAHs have been reported in several countries as they are a global problem and with diverse sources (3,5). In South Africa, although PAHs have been reported in various environmental media (15)(16)(17)(18)(19)(20)(21)(22)(23), no comprehensive review is available that provides the status of such analyses, trends in concentration levels and existing gaps. This is very important because PAHs are emitted from numerous sources in South Africa.…”

Two-phase/Three-phase Hollow Fibre Liquid-Phase Simultaneous Microextraction Combined with HPLC for Analysis of Phenolic Acids and Flavonoids in Traditional Chinese Medicine

“…In recent years, both 2p-HF-LPME [19,20] and 3p-HF-LPME [21][22][23][24] have been, respectively, applied for various sample preparation procedures because of major advantages such as simplicity, comparable sensitivity, low solvent consumption, high enrichment, low cost and excellent sample clean-up [25]. In addition, HF-LPME can tolerate a wide pH range and avoid cross-contamination of samples because the fibres are inexpensive enough to dispose of after each use.…”