Compound IV showed a deep purple colour on paper chromatography
at [R.sub.f] (a) 0.80 and [R.sub.f] (b) 0.13 under UV, changed to yellow green on N[H.sub.3] exposure.
has sensitivity threshold of about 100mg/L in indicating a qualitative result, so it has its limits in determining final MLF.
Separation of Floral Pigments by Paper Chromatography
Three species were formed during labeling of the proposed diamine-dione ligand with 99mTc, the bound 99mTc complex, 99mTc-pertechnetate (99mTcO4-) and reduced hydrolyzed 99mTcO2, which were determined by ITLC, and paper chromatography
. For paper chromatography
, Whatmann No.
Therefore, it is not a "how to" book that describes useful techniques or information for current applications, unless you are looking for information about how to perform two-dimensional paper chromatography
. Rather, it offers historical accounts, often first-person descriptions, of many of the key discoveries relating to the central dogma of molecular biology as initially expounded by Francis Crick in 1958: "DNA makes RNA makes protein." This book is of potential interest for aficionados of the history of science, particularly relating to molecular biology, and selected chapters might be of value to scientists in training, or early in their career.
1905) broke down nucleic acid molecules to their constituent bases and separated them by paper chromatography
. He determined the quantity of each present and by 1948 was able to demonstrate than, in nucleic acids generally, the number of guanine units was equal to the number of cytosine units, and the number of adenine units was equal to the number of thymine units.
(PC) was performed by using acetone as mobile phase and Instant Thin Layer Chromatography (ITLC) by using saline as mobile phase.
(17 ) for plasma cortisol; samples were chromatographed on Celite columns possible coelution of cortisol and cortisone (?) by 400 mL/L ethyl acetate Lewicka RIA; paper chromatography
0% et al.
The use of paper chromatography
(see 1944) had made it possible to determine the number of units of each amino acid in a particular protein molecule.
However, there is an indication that it can be increased considerably, based on limited data from two women, obtained by a methodology based on paper chromatography
and conversion of androgens to estrogens for fluorometric analysis (6).