INTENTION:The effect of different reaction conditions such as temperature,pH value,time,the concentration of Na+ ions and Pb2+ ions on the complexation capacity of carboxymethyl chitosan（CMCS） to Ca2+ions,were inves...INTENTION:The effect of different reaction conditions such as temperature,pH value,time,the concentration of Na+ ions and Pb2+ ions on the complexation capacity of carboxymethyl chitosan（CMCS） to Ca2+ions,were investigated.METHOD:In different reaction conditions,carboxymethyl chitosan reacted with saturated solution of calcirm chorde,produced carboxymethyl chitoxan calcium（CCC）.The Ca2+ions concentration of CCC was determined by atomic absorption spectrophotometer.RESULT:After 15 minutes,the complexation capacity of Ca2+ions to CMCS was to most in the room temperature at pH6.0.CONCLUSION:The complexation of Ca2+ions to CMCS has been influenced by the complexation capacity of CMCS to other cations in the reactions system.展开更多
文摘INTENTION:The effect of different reaction conditions such as temperature,pH value,time,the concentration of Na+ ions and Pb2+ ions on the complexation capacity of carboxymethyl chitosan（CMCS） to Ca2+ions,were investigated.METHOD:In different reaction conditions,carboxymethyl chitosan reacted with saturated solution of calcirm chorde,produced carboxymethyl chitoxan calcium（CCC）.The Ca2+ions concentration of CCC was determined by atomic absorption spectrophotometer.RESULT:After 15 minutes,the complexation capacity of Ca2+ions to CMCS was to most in the room temperature at pH6.0.CONCLUSION:The complexation of Ca2+ions to CMCS has been influenced by the complexation capacity of CMCS to other cations in the reactions system.
