The guinea pigs were dermally exposed to nickel (Ni), sodium lauryl sulphate (SLS) and in their combination for 7 and 14 days. The exposure to Ni and SLS produced changes in enzymes and lipid peroxidation in kidney. T...The guinea pigs were dermally exposed to nickel (Ni), sodium lauryl sulphate (SLS) and in their combination for 7 and 14 days. The exposure to Ni and SLS produced changes in enzymes and lipid peroxidation in kidney. The exposure to Ni or SLS depicted slight changes while combined exposure to Ni plus SLS exhibited more degenerative changes in kidney. The result of the study suggests that industrial workers and/or populations exposed simultaneously to Ni and SLS produces more damage to kidney.展开更多
In buffer solution of NaAc-HCl,when congo red(CGR) is mixed with the solution of cetylpyridinium bromide(CPB) after anion surfactant(AS) is added,the colour of the soluotion become deeper,and the max absorbtion wavele...In buffer solution of NaAc-HCl,when congo red(CGR) is mixed with the solution of cetylpyridinium bromide(CPB) after anion surfactant(AS) is added,the colour of the soluotion become deeper,and the max absorbtion wavelength is at 570 nm.At this wavelength,the absorbence enhancement is proportional to concentration of anion surfactant(AS).Based on it,a photometry method determining for anion surfactant was established.In the max absorbtion wavelength,anion surfactant(AS),namely,sodium lauryl sulfonate(SLS)and sodium dodecyl sulfate(SDS),in the 0～2.4×10-4 mol/L and 0～2.7×10-4 mol/L range obey Beer(s Law,and the apparent molar absorptivity(ε) of 1.28×104 L/(mol.cm) and 1.19×104 L/(mol.cm),the detection limit of 1.43×10-6 mol/L and 1.08×10-6 mol/L are obtained respectively.The proposed method has good sensitivity and better anti-jamming ability and has been applied to the determination of anionic surfactant(AS) in water samples with satisfactory results.展开更多
文摘The guinea pigs were dermally exposed to nickel (Ni), sodium lauryl sulphate (SLS) and in their combination for 7 and 14 days. The exposure to Ni and SLS produced changes in enzymes and lipid peroxidation in kidney. The exposure to Ni or SLS depicted slight changes while combined exposure to Ni plus SLS exhibited more degenerative changes in kidney. The result of the study suggests that industrial workers and/or populations exposed simultaneously to Ni and SLS produces more damage to kidney.
文摘In buffer solution of NaAc-HCl,when congo red(CGR) is mixed with the solution of cetylpyridinium bromide(CPB) after anion surfactant(AS) is added,the colour of the soluotion become deeper,and the max absorbtion wavelength is at 570 nm.At this wavelength,the absorbence enhancement is proportional to concentration of anion surfactant(AS).Based on it,a photometry method determining for anion surfactant was established.In the max absorbtion wavelength,anion surfactant(AS),namely,sodium lauryl sulfonate(SLS)and sodium dodecyl sulfate(SDS),in the 0～2.4×10-4 mol/L and 0～2.7×10-4 mol/L range obey Beer(s Law,and the apparent molar absorptivity(ε) of 1.28×104 L/(mol.cm) and 1.19×104 L/(mol.cm),the detection limit of 1.43×10-6 mol/L and 1.08×10-6 mol/L are obtained respectively.The proposed method has good sensitivity and better anti-jamming ability and has been applied to the determination of anionic surfactant(AS) in water samples with satisfactory results.
