Conductometric titration of hydrochloric acid in gastric juice.

1980 ◽  
Vol 26 (13) ◽  
pp. 1895-1897
Author(s):  
A P van Zanten ◽  
A van den Ende

Abstract We describe a procedure for the determination of hydrochloric acid concentration in gastric juice by means of a conductometric titration of the 50-fold diluted sample with an aqueous ammonia solution. The conductometric method of endpoint indication leads to a definite location of the equivalence point in the titration of hydrochloric acid. The proposed method is simple and accurate and shows a good correlation with an accepted method for the measurement of gastric acidity.

2010 ◽  
Vol 4 (5) ◽  
pp. 729-738 ◽  
Author(s):  
Feng Qin ◽  
Shujuan Wang ◽  
Ardi Hartono ◽  
Hallvard F. Svendsen ◽  
Changhe Chen

2003 ◽  
Vol 42 (11) ◽  
pp. 3559-3564 ◽  
Author(s):  
Kenneth L. Stevenson ◽  
Jessica H. Jarboe ◽  
Stacy A. Langmeyer ◽  
Travis W. Acra

2002 ◽  
Vol 57 (8) ◽  
pp. 895-900 ◽  
Author(s):  
Olaf Reckeweg ◽  
Arndt Simon

Pseudobinary cyanides of monovalent and divalent metals were synthesized, and X-ray and Raman data of the cyanides were measured. Single crystal X-ray structure analyses were performed on Zn(CN)2 (Pn3̄m (No. 224), a = 591.32(7) pm), Hg(CN)2 (I4̄2d (No. 122), a = 969.22(14) and c = 890,15(18) pm) and for the first time on AgCN (I4̄2d (No. 166), a = 600.58(8) and c = 526.28(11) pm). The data are compared with literature data. The reaction of TlF and NaCN in 25% aqueous ammonia solution in air led to Tl5(CO3)2(CN) which was characterized by X-ray (Cmca (No. 64), 1468.1(3), 1171.6(2) and 1266.0(3) pm) and Raman spectroscopy.


1995 ◽  
Vol 49 (1-2) ◽  
pp. 115-121 ◽  
Author(s):  
Lai-Cheng Chen ◽  
Minjan Chen ◽  
Tay-Her Tsaur ◽  
Chenhsin Lien ◽  
Chi-Chao Wan

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