Table 1.

TLC and HPTLC methods for determination of curcuminoids

Sample	Stationary phase	Mobile phase	Solventa	Wavelength	LOD and LOQ	References
TLC methods
Turmeric powder	Silica gel	CHCl3:CH3COOH (80:20)	CH3OH	436 nm	Not reported	Janben and Gole (1984)
Turmeric rhizomes	Silica gel plate 60F254	C6H14:CHCl3:CH3OH (10:10:1 v/v/v)	CH3OH	254 nm	43–73 and 43–242 ng/spot	(Sotanaphun et al. (2009)
Turmeric rhizomes	Silica gel plate 60 F254	CHCl3:C6H14:CH3OH (1:1:0.1 v/v/v)	CH2Cl2	Image analysis	LOD: 158 and LOD: 525 ng/mL	Phattanawasin et al. (2009)
HPTLC methods
Turmeric rhizomes	LiChrosphere aluminium plates SI 60F254	CHCl3:CH3OH (98:2 v/v	C3H6O	366 nm	LOD: 40 and LOQ: 100 ng/mL	Pathania et al. (2006)
Turmeric rhizomes	Nano Silica gel 60F 254	CHCl3:C4H8O2 (19:1 v/v)	C2H6O	254 and 366 nm	Not reported	Green et al. (2008)
Turmeric rhizomes	Silica gel aluminum plate 60GF254	CHCl3:CH3OH (48:2 v/v)	C6H6	425 nm	LOD: 0.1 µg/spot	Paramasivam et al. (2009)
Turmeric powder	Silica gel 60 F254	CH2C12:CH3OH (99:1) combination	CH3OH	427 nm	LOD: 49 and LOD: 148 ng/mL	Gantait et al. (2011)
Turmeric rhizomes	Silica gel plate 60 F254	C7H8:C4H8O2:CH2O2 (9:6:0.4)	C2H6O	200 and 700 nm	Not reported	Taha et al. (2015)
Polyherbal formulation	Silica gel aluminum plate 60 F254	C7H8:C4H8O2:CH2O2 (4.5:4:0.1, v/v/v)	CH3OH	250 nm	Not reported	Baghel et al. (2017)

^aUsed in sample preparation