APA

Jagerdeo E., Abdel-Rehim M., . (20090819). Screening of cocaine and its metabolites in human urine samples by direct analysis in real-time source coupled to time-of-flight mass spectrometry after online preconcentration utilizing microextraction by packed sorbent. : Journal of the American Society for Mass Spectrometry.

Chicago

Jagerdeo Eshwar, Abdel-Rehim Mohamed, . 20090819. Screening of cocaine and its metabolites in human urine samples by direct analysis in real-time source coupled to time-of-flight mass spectrometry after online preconcentration utilizing microextraction by packed sorbent. : Journal of the American Society for Mass Spectrometry.

Harvard

Jagerdeo E., Abdel-Rehim M., . (20090819). Screening of cocaine and its metabolites in human urine samples by direct analysis in real-time source coupled to time-of-flight mass spectrometry after online preconcentration utilizing microextraction by packed sorbent. : Journal of the American Society for Mass Spectrometry.

MLA

Jagerdeo Eshwar, Abdel-Rehim Mohamed, . Screening of cocaine and its metabolites in human urine samples by direct analysis in real-time source coupled to time-of-flight mass spectrometry after online preconcentration utilizing microextraction by packed sorbent. : Journal of the American Society for Mass Spectrometry. 20090819.