Table 3 Comparison of separation results for different chiral separators utilizing CNTs, GO, and graphene.

From: Surface-modified three-dimensional graphene nanosheets as a stationary phase for chromatographic separation of chiral drugs

Separator type

CNT-doped organic polymer monolith (ref.25)

Glutamic acid-modified GO separation membrane (ref.37)

Alanine racemase chiral analogue-coated mesoporous carbon monolith (refs39,40)

Carbon nanoparticle-modified separation system with dextrin (ref.27)

MOD1 mesoporous 3D GNS

MOD3 Mesoporous 3D GNS

Reported selectivity α

1.1 ÷ 2.89 depending on separated compound

2 (max)

 

1 ÷ 2.5 depending on separated compound

17.5 (for thalidomide)

12.5 (for ibuprofen)

Reported resolution Rs or degree of separation

1.31 ÷ 2.87 depending on separated compound

 

90–95% separation

0.8–4.3 depending on separated compound

baseline separation for 0.05 mg/ml of thalidomide

baseline separation for 0.8 mg/ml of ibuprofen

Separated chiral compound

Celiprolol, chlorpheniramine, cizolirtine and others (ref.25)

D,L-DOPA (see ref.37)

Phenylalanine, serine, tryptophan

Sulconazole, ketoconazole, citalopram hydrochloride, nefopam hydrochloride

thalidomide, ibuprofen

ibuprofen, thalidomide

Functional role and separation technique it is designed for

Chiral stationary phase for HPLC

Membrane material for membrane filtration

Adsorbing material, adsorption

Electrode material for capillary electro kinetic chromatography

Chiral stationary phase for HPLC

Chiral stationary phase for HPLC