Enzymatic determination of free l-(−)-malic acid in must and wine by stopped-flow flow-injection analysis

1991 ◽  
Vol 247 (1) ◽  
pp. 61-65 ◽  
Author(s):  
C.Garcia De María ◽  
T.Manzano Muñoz ◽  
A.Alonso Mateos ◽  
L.García De María
1991 ◽  
Vol 242 ◽  
pp. 179-183 ◽  
Author(s):  
Juan A. Infantes ◽  
María Dolores Luque de Castro ◽  
Miguel Valcárcel

1993 ◽  
Vol 76 (6) ◽  
pp. 1255-1261 ◽  
Author(s):  
A Espinosa-Mansilla ◽  
A Muñoz Dela Peña ◽  
F Salinas

Abstract A kinetic study of the reactions of 5-hydroxymethyl-2-furfuraldehyde and furfural with 2-thiobarbituric acid (TBA) by a stopped-flow flow injection analysis technique has been undertaken. A semiautomatic method for the analytical determination of these furanic aldehydes is proposed on the basis of reaction with TBA. The proposed stopped-flow method was successfully applied to several commercial pharmaceutical preparations and food samples. The procedure is faster than the earlier procedure for determination of these compounds in foods and pharmaceuticals.


1987 ◽  
Vol 36 (3) ◽  
pp. 309-315 ◽  
Author(s):  
A. Maquieira ◽  
M.D.Luque de Castro ◽  
M. Valcárcel

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