00446nam a2200133Ia 4500008004100000082001700041100002900058245005500087260003800142300000800180942000700188952010000195999001700295140113s9999 xx 000 0 und d a543.544 M2 a"Touchstone, Joseph. C." aPractice of thin layer chromatography. 2nd edition a1982bJohn Wiley & SonscNew York a405 cBK 00104070aVTLbVTLd2014-01-13l0o543.544 M2pVBK4345r2014-01-13 00:00:00w2014-01-13yBK c60929d60929