Quantification of polycyclic aromatic hydrocarbons in tea and coffee samples of Mumbai City (India) by high performance liquid chromatography.
This paper describes a method for quantification of sixteen polycyclic aromatic hydrocarbons (PAHs) in tea and coffee samples of Mumbai City with the help of reversed phase high performance liquid chromatography with UV-VIS detector. This method is based on liquid-liquid extraction followed by clean up with C-18 cartridge. Concentration of total PAHs in different brands of tea and coffee samples varied from 18.79 to 31.37 microg/L and from 16.47 to 18.24 microg/L, respectively. Mean concentration of total PAHs was 27.56 microg/L in tea and 17.20 microg/L in coffee. Recoveries at different concentration levels were higher than 68% in samples of tea and coffee. Detection limit was found to be low (0.0006 ng) for anthracene and highest (0.174 ng) for naphthalene with relative standard deviation between 0.4%-7%.
Bishnoi
Narsi R
NR
Department of Environmental Science & Engineering, Guru Jambheshwar University, Hisar 125 001, India. nrbishnoi@indiatimes.com
Mehta
Urvashi
U
Sain
Umashanker
U
Pandit
G G
GG
D002851:Chromatography, High Pressure Liquid / Q000379:methods; D002947:Cities; D003069:Coffee / Q000737:chemistry*; D007194:India; D008832:Microchemistry; D009281:Naphthalenes / Q000032:analysis; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis*; D013662:Tea / Q000737:chemistry*; D013997:Time Factors; D014874:Water Pollutants, Chemical / Q000032:analysis*
D003069:Coffee; D009281:Naphthalenes; D011084:Polycyclic Aromatic Hydrocarbons; D013662:Tea; D014874:Water Pollutants, Chemical; C031721:naphthalene