00457nam a22001577a 450000500170000000800410001702000180005804000300007605000210010610000260012724500430015325000120019626000380020830000220024665000310026820240625094529.0230802b        |||||||| |||| 00| 0 eng d  q0-471-61222-7  cChuka University  Library  aQD 79 bT68 1992  aTouchstone, Joseph C.  a Practice of thin layer chromatography  a3rd ed.  aNew YorkbJohn Wiley & Sonsc1992  a377pbIllustrated  a Thin layer Chromatography