Silva, M <br/><br/>
Spectrophotometric determination of microgram amounts of calcium in waters and foods using diphenylglyoxal bis(2-hydroxybenzoyl hydrazone).  [electronic resource] 

 -  The Analyst  Mar 1980 
 - 193-202 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0003-2654 
<br/><br/><label>Standard No.: </label>10.1039/an9800500193  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aldehydes<br/>Calcium--analysis<br/>Food Analysis<br/>Hydrazones<br/>Indicators and Reagents<br/>Microchemistry<br/>Phenylglyoxal--analogs & derivatives<br/>Spectrophotometry--methods<br/>Water--analysis