| AA | ascorbic acid |
| EDTA | ethylenediaminetetraacetic acid |
| FA | folic acid |
| Glu | glutamic acid |
| ITLC | instant thin layer chromatography |
| Lys | lysine |
| MTX | methotrexate |
| PBS | phosphate-buffered saline |
| Rf | retention factor |
| RT | retention time |
| TLC | thin layer chromatography |
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