Capillary electrophoretic monitoring of microbial growth: determination of organic acids

2004 ◽  
Vol 53 (2) ◽  
pp. 51
Author(s):  
K Helmja ◽  
M Kaljurand ◽  
M Kudrjashova ◽  
H Tahkoniemi
Keyword(s):  
Organic Acids ◽  
Microbial Growth ◽  
Capillary Electrophoretic

Sample pretreatment for the capillary electrophoretic determination of organic acids in chromium(III) plating baths

2015 ◽  
Vol 38 (24) ◽  
pp. 4255-4261
Author(s):  
Lukáš Taraba ◽  
Tomáš Křížek ◽  
Anna Kubíčková ◽  
Pavel Coufal
Keyword(s):  
Organic Acids ◽  
Sample Pretreatment ◽  
Capillary Electrophoretic

Capillary electrophoretic determination of organic acids with indirect detection

1995 ◽  
Vol 716 (1-2) ◽  
pp. 291-301 ◽  
Author(s):  
C.H. Wu ◽  
Y.S. Lo ◽  
Y.-H. Lee ◽  
T.-I. Lin
Keyword(s):  
Organic Acids ◽  
Indirect Detection ◽  
Capillary Electrophoretic

INFLUENCE OF DICARBOXYLIC ACIDS ON SOWING QUALITY OF SPRING BARLEY

1970 ◽  
pp. 22-25
Author(s):  
N. N. Loy ◽  
S. N. Gulina
Keyword(s):  
Organic Acids ◽  
Spring Barley ◽  
Dose Range ◽  
Dicarboxylic Acids ◽  
Rotary Machine ◽  
Working Solution ◽  
Negative Effect ◽  
Sprouted Seeds

The effect of presowing seed treatment on various concentrations of dicarboxylic (organic) acids on the sowing characteristics of spring barley has been studied. Seeds were treated with organic acids obtained by exposing cuttings to the radiation with a dose of 100 kGy and consequent hydrolysis, in concentrations: 1•10-7 %; 1•10-9; 1•10-11; 1•10-13 and 1•10-15 % on a laboratory rotary machine RVO-64 for one day before laying for germination. Distilled water was used for the control case. The rate of application of the working solution calculated as 10 liters / ton of seeds. Seeds were germinated in filter paper rolls in accordance with GOST 12038-84 requirements. The temperature was maintained at +24 ° C in the thermostat where the glasses with rolls were placed. For determination of germinative power and laboratory germination the sprouted seeds were evaluated after three and seven days, respectively. In laboratory experiments it was established that the treatment of barley seeds of varieties Zazersky 85, Nur and Vladimir with organic acids (OK) in different concentrations had both a stimulating and a negative effect. On the Zazersky 85 variety, in variants with acid concentrations of 1•10-9 and 1•10-11, an increase in germination energy (EP) by 2-4% and a significant decrease (by 3-4%) of laboratory germination (LV) of barley seeds were noted. On the Nur variety, the increase in EP was observed at 4% (concentration 1•10-11), LV and seed growth force (CPC) by 2-7% at a concentration of 1•10-7 and in the dose range 1•10-11 - 1•10-14 compared to the control values. On the grade of Vladimir, an increase in EP, LV, and CPC was found to increase by 1-6% at concentrations OK 1•10-7 and 1•10-13. It was shown that the treatment of seeds with acids led to an increase in the length of the germ in all studied varieties (by 3-9%) and dry biomass of 7-day-old seedlings - by 3-6%. Consequently, the treatment of seeds with a mixture of dicarboxylic acids has a stimulating effect on the sowing quality of spring barley.

Determination of Organic Acids in Saudian Bee Honey Types

2013 ◽  
Vol 5 (2) ◽  
pp. 117-120
Author(s):  
Nafea A. ◽  
Zidan W. ◽  
Asmaa Fawzy ◽  
Sehata A.
Keyword(s):  
Organic Acids

Capillary Electrophoretic Determination of Resveratrol in Wines†

1999 ◽  
Vol 47 (8) ◽  
pp. 3223-3227 ◽  
Author(s):  
Xuelin Gu ◽  
Le Creasy ◽  
April Kester ◽  
Michael Zeece
Keyword(s):  
Capillary Electrophoretic

Determination of some organic acids and inorganic anions in beet sugar by ionic HPLC

1998 ◽  
Vol 61 (4) ◽  
pp. 449-453 ◽  
Author(s):  
Valérie Magne ◽  
Mohamed Mathlouthi ◽  
Bertrand Robilland
Keyword(s):  
Organic Acids ◽  
Inorganic Anions ◽  
Beet Sugar
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