The heteroligand complex of manganese with 1,10-phenantroline and o-nitrobenzolazosalicylic acid has been investigated by spectrophotometric method. The condition of complexing and extraction, physical-chemical and an...The heteroligand complex of manganese with 1,10-phenantroline and o-nitrobenzolazosalicylic acid has been investigated by spectrophotometric method. The condition of complexing and extraction, physical-chemical and analytical characteristics of this complex have been found. Complex formation is observed in the pH range 5 - 11. Extraction constant was found as 5.3 × 1012, stability constant was found as lgβK = 9.03?± 0.03. Molar absorptivity is ε = (1.36 ± 0.08) × 104 l·g﹣1·cm﹣1. Beer's law is obeyed in the range of 1.0 - 22.5 μkg manganese (II). The extraction-photometric methods of manganese determination have been worked out. The influence of diverse ions on determination of manganese (II) has been studied. The proposed method was applied successfully to determine amount of manganese in tap water.展开更多
该文探讨了富含多糖的药食同源复合剂(Ganoderma lucidum Complex Water Extract,PCW)对H22肝癌小鼠的抗肿瘤作用。建立H22荷瘤小鼠模型,设正常组、模型组、阳性对照组(Lentinan,LEN)、PCW低、中、高剂量组,测定抑瘤率、脏器指数、肿瘤...该文探讨了富含多糖的药食同源复合剂(Ganoderma lucidum Complex Water Extract,PCW)对H22肝癌小鼠的抗肿瘤作用。建立H22荷瘤小鼠模型,设正常组、模型组、阳性对照组(Lentinan,LEN)、PCW低、中、高剂量组,测定抑瘤率、脏器指数、肿瘤和肝脏HE染色、脾淋巴细胞增殖能力、血清细胞因子等指标。结果表明,阳性对照组、PCW低、中、高剂量组小鼠的抑瘤率分别为30.01%、27.95%、46.72%、54.23%;低、中、高剂量(50、100、200 mg/kg)PCW可显著改善H22荷瘤模型小鼠脾脏、胸腺的病变(P<0.05);H22肝癌细胞的生长和PCW干预未对小鼠肝脏产生显著影响;相较于模型组,低、中、高剂量PCW可极显著提高小鼠脾淋巴细胞增殖能力(P<0.01);中、高剂量PCW可显著提高IL-6、TNF-α、IL-12水平(P<0.05)。结论,PCW对H22荷瘤小鼠肿瘤有一定抑制作用,该研究结果可为抗肿瘤功能的产品研发提供新思路。展开更多
文摘The heteroligand complex of manganese with 1,10-phenantroline and o-nitrobenzolazosalicylic acid has been investigated by spectrophotometric method. The condition of complexing and extraction, physical-chemical and analytical characteristics of this complex have been found. Complex formation is observed in the pH range 5 - 11. Extraction constant was found as 5.3 × 1012, stability constant was found as lgβK = 9.03?± 0.03. Molar absorptivity is ε = (1.36 ± 0.08) × 104 l·g﹣1·cm﹣1. Beer's law is obeyed in the range of 1.0 - 22.5 μkg manganese (II). The extraction-photometric methods of manganese determination have been worked out. The influence of diverse ions on determination of manganese (II) has been studied. The proposed method was applied successfully to determine amount of manganese in tap water.