Influence of organic solvents in the mobile phase on the determination of carboxylic acids and inorganic anions in grape juice by ion chromatography

2000 ◽  
Vol 881 (1-2) ◽  
pp. 387-394 ◽  
Author(s):  
P Masson
Keyword(s):  
Carboxylic Acids ◽  
Organic Solvents ◽  
Ion Chromatography ◽  
Mobile Phase ◽  
Grape Juice ◽  
Inorganic Anions

scholarly journals Determination of Trace Inorganic Anions in Weak Acids by Single-Pump Column-Switching Ion Chromatography

2010 ◽  
Vol 48 (7) ◽  
pp. 553-558 ◽  
Author(s):  
H. Zhu ◽  
H. Chen ◽  
Y. Zhong ◽  
D. Ren ◽  
Y. Qian ◽  
...  
Keyword(s):  
Ion Chromatography ◽  
Column Switching ◽  
Inorganic Anions ◽  
Weak Acids

Direct determination of bromide ions in sea water by ion chromatography using water as the mobile phase

1996 ◽  
Vol 322 (1-2) ◽  
pp. 43-47 ◽  
Author(s):  
Hu Wenzhi ◽  
Cao Shun-an ◽  
Mamoru Tominaga ◽  
Akira Miyazaki
Keyword(s):  
Ion Chromatography ◽  
Mobile Phase ◽  
Sea Water ◽  
Direct Determination ◽  
Bromide Ions

scholarly journals Determination of Oxalate and Some Inorganic Anions in Green and Black Tea

2013 ◽  
Vol 67 (4-5) ◽  
pp. 429-432 ◽  
Author(s):  
Elena Yusenko ◽  
Evgeniya Polyntseva ◽  
Anna Lyzhova ◽  
Olga Kalyakina
Keyword(s):  
Oxalic Acid ◽  
Green Tea ◽  
Ion Chromatography ◽  
Black Tea ◽  
Inorganic Anions ◽  
Sample Treatment ◽  
Oxalate Concentration ◽  
Relative Standard ◽  
Oxalate Ions

Abstract Oxalate concentration differs in various daily consumed food products. The role of oxalic acid in the human body is very significant, as its compounds are responsible for the stability of biological membranes. However, insoluble calcium and magnesium oxalates can be accumulated in the body in the form of kidney stones. Oxalate concentration has been measured by high performance liquid, gas after derivatization and ion chromatography (IC). The most effective method for the simultaneous determination of oxalate and inorganic anions is ion chromatography with conductometric detection. Here, we report the results of the measurement of oxalic acid in bleak and green tea samples. Separation was performed by IC on an anion-exchange column Shodex IC SI-90 with surface-layer sorbent and conductimetric detection. The main analytical features of the method were: limit of detection of oxalic acid 0.03 mg/l, linear range 0.1-20 mg/l, correlation 0.9998, relative standard deviation 1%. The method did not need specific sample treatment and was successfully applied to the analysis of black and green tea samples. Oxalic acid was determined in the ranges 16.7-84 mg/l for green tea and 63-116 mg/l for black tea. Green tea contained lower oxalate ions concentration than black tea. The IC method has a lower detection limit for oxalate ions than HPLS and GC, ten and two times less, respectively

scholarly journals Determination of Anions in Water-immiscible Organic Solvents by Ion Chromatography Combined with In-line Matrix Elimination

2018 ◽  
Vol 67 (8) ◽  
pp. 461-468
Author(s):  
Takahisa YAMAMOTO ◽  
Seiichi SUZUKI ◽  
Mami OZAWA ◽  
Yasuyuki KOBAYASHI ◽  
Yoshinori INOUE
Keyword(s):  
Organic Solvents ◽  
Ion Chromatography ◽  
Determination Of Anions ◽  
Matrix Elimination
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