Optimization of Lysine Adsorption Process Using Strong Cation-Exchange Resin

1991 ◽  
Vol 26 (6) ◽  
pp. 869-883
Author(s):  
Tetsuya Kawakita ◽  
Tsutomu Matsuishi ◽  
Yoshihiro Koga
Keyword(s):  
Cation Exchange ◽  
Adsorption Process ◽  
Exchange Resin ◽  
Cation Exchange Resin ◽  
Strong Cation Exchange

Ion Exchange Method for Rapid Determination of Alkalinity of Water-Soluble Tea Ash Containing High Levels of Manganese

1980 ◽  
Vol 63 (3) ◽  
pp. 460-461
Author(s):  
Saidul Z Qureshi ◽  
Fadhil M Najib ◽  
Fahmi A Mohammed
Keyword(s):  
Ion Exchange ◽  
Cation Exchange ◽  
Exchange Resin ◽  
Rapid Determination ◽  
Cation Exchange Resin ◽  
Water Soluble ◽  
Exchange Method ◽  
Strong Cation Exchange ◽  
Ion Exchange Method

Abstract An ion exchange method to determine the alkalinity of water-soluble tea ash containing high levels of manganese is described. A chromatographic column containing a strong cation exchange resin (20–50 mesh) in Na+ form, with a bed volume of 5 mL is used. The present ion exchange method is compared to pH titrations and also to the official AOAC methods (31.012, 31.015, 31.016). Results with the new method are accurate and precise.

scholarly journals Synthesis of hydrated ferric oxide on cation exchange resin for phosphate and hardness removal in water

2022 ◽  
Vol 964 (1) ◽  
pp. 012032
Author(s):  
Le Ba Tran ◽  
Trung Thanh Nguyen ◽  
Tri Thich Le ◽  
Quynh Anh Nguyen Thi ◽  
Phuoc Toan Phan ◽  
...  
Keyword(s):  
Cation Exchange ◽  
Adsorption Process ◽  
Exchange Resin ◽  
Cation Exchange Resin ◽  
Phosphate Adsorption ◽  
Solution Ph ◽  
Adsorption Effect ◽  
Factors Affecting ◽  
Adsorption Condition ◽  
Before And After

Abstract In this study, a potential adsorbent was synthesized from iron salt and cation exchange resin (FeOOH@CR) and applied for phosphate adsorption in batch experiments. The characteristics of FeOOH@CR materials before and after phosphate adsorption were determined by FTIR, XRD, and SEM. The factors affecting the adsorption process such as reaction time, solution pH, material dosage, concentration, temperature, and competing ions were tested. Kinetic, thermodynamic and isothermal models of the adsorption process were applied to study the nature of the adsorption process. The properties of phosphate adsorption, effect of competitive ions and material reusability were also examined. Results showed that the adsorption time reached equilibrium after 48 h and the suitable adsorption condition was found at solution pH of 6.5, material dosage of 5 g/L. In addition, the durability of the material after 5 times of regeneration was investigated with the remained adsorption ability of about 55% as compared to the original one.

Kinetics of Adsorption of Thymopentin on a Gel-Type Strong Cation-Exchange Resin

2007 ◽  
Vol 66 (3-4) ◽  
pp. 231-235 ◽  
Author(s):  
Xin Li ◽  
Lei Zhang ◽  
Yonghui Chang ◽  
Shubao Shen ◽  
Hanjie Ying ◽  
...  
Keyword(s):  
Cation Exchange ◽  
Exchange Resin ◽  
Cation Exchange Resin ◽  
Kinetics Of Adsorption ◽  
Strong Cation Exchange ◽  
Kinetics Of

"True" Creatinine Chromogen Determination in Serum and Urine by Semi-automated Analysis

1965 ◽  
Vol 11 (8) ◽  
pp. 763-770 ◽  
Author(s):  
E Polar ◽  
J Metcoff
Keyword(s):  
Cation Exchange ◽  
Phosphate Buffer ◽  
Exchange Resin ◽  
Cation Exchange Resin ◽  
Automated Analysis ◽  
Positive Error ◽  
Strong Cation Exchange ◽  
Automated Method ◽  
Manual Methods ◽  
Serum And Urine

Abstract The Jaffè reaction, used to determine creatinine in urine and plasma or serum, gives a positive error in the latter because of the interference of noncreatinine. In man (particularly children) endogenous creatinine normally occurs at a relatively low concentration in serum (0.3-1.0 mg./100 ml.). The analytic error contributed by noncreatinine chromogens, therefore, may be considerable. Of various manual methods to eliminate this none has been used with automated creatinine analyses, which generally measure total creatinine-like chromogen. In the present investigation a strong cation-exchange resin is used manually for rapidly adsorbing and desorbing "true" creatinine from plasma which is then analyzed by an automated method. A phosphate buffer (pH 12.4) is substituted for 5% (w/v) NaOH, dialysis eliminated, and the instrument manifold design is modified. Concentrations of "true" creatinine from 0.2-2.0 mg./100 ml. can be determined at a rate of 20 samples per hr. in serum or 40/hr. in urine, with a recovery of 98-101%.

Sign in / Sign up

Export Citation Format

Share Document