Table III.

Extraction Solvents and Analytical Techniques Used in the Extraction Studies

Solvents	Water at pH 2.5 (HCl/KCl mixture)
	Water at pH 9.5 (phosphate buffer)
	Water
	Isopropyl alcohol (IPA) to water (1:1)
	IPA (spectroscopic grade)
	Dichloromethane (DCM) (spectroscopic grade)
	Hexane or Iso-hexane (spectroscopic grade)
Analytical techniques	Gas chromatography/mass spectrometry (GC/MS)
	Gas chromatography/flame ionization detector (GC/FID)
	Liquid chromatography/mass spectrometry (LC/MS)
	Liquid chromatography/ UV detection (LC/UV)
	Inductively coupled plasma/mass spectrometry (ICP/MS)