Green Synthesis of Fluorescent Carbon Quantum Dots for Detection of Hg2+ / 分析化学

Fluorescent carbon quantum dots ( CQDs) were synthesized by one-step hydrothermal treatment of apple juice. Experiments showed that Hg2+could quench the fluorescence of the CQDs with specificity. Based on this phenomenon, a selective and sensitive sensor was constructed for Hg2+ detection. In a NaH2 PO4-Na2HPO4 buffer solution (pH 7. 0), their fluorescence intensity showed good linear relationship with the concentrations of Hg2+ from 5 to 100 nmol/L and 1 to 50 μmol/L, respectively, with the detection limit of 2. 3 nmol/L (S/N=3). Its practical application was further demonstrated by the detection of Hg2+ in real water samples.

Clinical observation of the effect of ATRA, As2O3 and chemotherapy on acute promyelocytic leukemia / 白血病·淋巴瘤

Objective To observe the efficacy and side effects of combined therapy with victoria A acid,arsenic trioxide and chemotherapeutics for newly diagnosed acute promyelocytic leukemia (APL). Methods 40 cases of patients were treated with combined therapy of ATRA, As2O3 and chemotherapy. The efficacy and side effects were analysed. Results 92.5 % (37/40) achieved complete remission(CR). The CR time was 27(22-61) d by average; leukocytes≥ 10×109/L group complete remission was 72.7 % (8/11), leukocytes < 10×l09/L group complete remission was 100 % (29/29). There was a significant different (x2 =8.550, P =0.004). No severe side effects was observed except one who developed retinoic acid syndrom. Conclusion The combined regimen of ATRA and As2O3 with chemotherapy for acute promyelocytic leukemia should be the first choice management.

Clinical observation of the ondanseton and dexamethone treatment for vomiting during hematologic diseases chemotherapy / 中国康复理论与实践

@#ObjectiveTo relieve the nausea and vomiting caused by chemotherapy in patients with hematologic diseases, and to secure the completion of chemotherapy.Methods320 cases of hematologic patients were divided randomly into 2 groups: the treatment group (160 cases): ondanseton 4 mg and dexamethone 10 mg I.V.; ondanseton group (160 cases): ondanseton 4 mg I.V.ResultsThe effective rate of the treatment group was 98.75%, and that of the ondansetron group was 43.13%. There was a singificantly difference between two groups (P<0.001).ConclusionOndanseton combined with dexamethone has a good effect on the vomiting and nausea induced by chemotherapy.