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Citation: KONG Ling, LIU Shao-Pu, LIU Zhong-Fang. Resonance Light Scattering Method for the Determination of Sodium Carboxymethyl Cellulose with Nile Blue Sulphate[J]. Chinese Journal of Applied Chemistry, ;2006, 23(7): 708-712. shu

Resonance Light Scattering Method for the Determination of Sodium Carboxymethyl Cellulose with Nile Blue Sulphate

1.
School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715

Corresponding author: LIU Shao-Pu,
Received Date: 1 July 2005
Available Online: 26 January 2006
Fund Project: 国家自然科学基金(20175018和20475045)资助项目 (20175018和20475045)

The resonance Rayleigh scattering(RRS),second-order scattering(SOS) and frequency-double scattering(FDS) methods were used to study the interaction of NaCMC with nile blue sulphate in a pH 6.0 Britton-Robinson buffer solution.The results showed that the reaction could result in strong enhancement of RRS,SOS and FDS.The maximum peaks were located at 298 nm(RRS),500 nm(SOS) and 392 nm(FDS). Three scattering intensities were proportional to the concentration of NaCMC in the range of 5.0×10^-8~3.0×10^-6 g /mL(RRS),5.0×10^-8~2.5×10^-6 g/mL(SOS and FDS).The detect limit was 1.8×10^-9 g/mL for RRS and SOS and 3.8×10^-9 g/mL for FDS.The three methods were applied to the determination of the concentration of NaCMC in synthetic samples and tobacco extracts with satisfactory results.
- sodium carboxymethyl cellulose,
- nile blue sulphate,
- resonance Rayleigh scattering,
- resonance non-linear scattering
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