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<title>CD Spectrum of Racemic Ananine Observed</title>
<h1>CD Spectrum of Racemic Ananine Observed</h1>
    Recently scientists from Beijing Agricultural University, Beijing 
Planetarium, Institute of Botany and the SR Lab of IHEP obtained some 
good results in racemic experimental study of alanine at 3B1B Biology Station.
 The branching ratios of  D-  to  L-alanine 
are D/L=5/0, 5/0.5, 5/1, 5/2,  5/5, 
 2/5, 1/5,   0.5/5, 0/5. A set of racemic curves were measured 
successfully (Fig.1), the result is very important for the study of the 
relationship between the racemic relation of amino acid and the symmetrization 
broken of living molecules.<p>
    During the experiment, the CD spectra for some living specimen¡ª
Light Harvest Chlorophyll and photosynthesis reaction were obtained. To 
calibrate wavelength the CD curves of the standard specimen ¡ª Phenyl sulfonic 
acid and androsterone have been obtained again and again.<p>  
    Performance of the experimental equipments were improved. Effective 
method was adopted to increase  signal-to-noise ratio. 
 Experimental  data  are under analysis.<p>
<address>Wang Wei</address>
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June 1995 BEPC News<p>