为贵州香椿芽的开发利用提供参考，采用取样检测方法分析了普定香椿椿芽和镇宁香椿椿芽中的矿物质、维生素、蛋白质、膳食纤维和重金属含量。结果表明：普定椿芽和镇宁椿芽中的矿物质 P元素含量分别达490 mg/100g和517 mg/100g，K元素分别为472 mg/100g和408 mg/100g，Na元素仅7．3 mg/100g和4．9 mg/100g；微量元素中的Fe元素含量分别为23．8 mg/100g和23．1 mg/100g，Zn元素分别为8．8 mg/100g和8．5 mg/100g；维生素中的VE 含量分别为15．1 mg/100g和19．9 mg/100g，VB2含量分别为1．96 mg/100g和0．51 mg/100g，未检测到VA；重金属中的 Hg含量分别为0．002 mg/kg和0．004 mg/kg， Cu含量分别为0．12 mg/kg和0．11 mg/kg，Pb含量分别为0．002 mg/kg和0．003 mg/kg，As含量分别为0．054 mg/kg和0．053 mg/kg。贵州香椿椿芽中P、K、Fe、Zn等矿物质元素含量多高于6种野生蔬菜，而重金属含量均小于6种野生蔬菜，也小于我国蔬菜食品中的重金属限量标准，其营养价值高，可安全食用。

The contents of mineral substances,vitamins,protein,dietary fiber and heavy metals in young T.sinensis leaves from Puding and Zhenning Counties were detected by sampling detection method to provide a reference for development and utilization of T.sinensis in Guizhou.The results showed that P,K and Na content in young T.sinensis leaves from Puding and Zhenning Counties were 490 mg/100g, 472 mg/100g and 7.3 mg/100g,and 517 mg/100g,408 mg/100g and 4.9 mg/100g respectively;The Fe, Zn and Cu content in young T.sinensis leaves from Puding and Zhenning Counties were 23.8mg/100g,8. 8 mg/100g and 1.2 mg/100g,and 23.1 mg/100g,8.5 mg/100g and 1.1 mg/100g separately;The VE and VB2 content in young T.sinensis leaves from Puding and Zhenning Counties were 15.1 mg/100g and 1.96 mg/100g,and 19.9 mg/100g and 0.51 mg/100g respectively;The Hg,Cu,Pb and As content in young T.sinensis leaves from Puding and Zhenning Counties were 0.002 mg/kg,0.12 mg/kg,0.002 mg/kg and 0.054 mg/kg,and 0.004 mg/kg,0.11 mg/kg

采用UASB+A/O组合工艺处理养殖废水。在进水COD为6 120 mg/L、BOD5为3 850 mg/L、NH3-N为450 mg/L、SS为8 300 mg/L时,出水COD为82 mg/L、BOD5为17 mg/L、SS为41 mg/L、氨氮为13 mg/L,去除率分别达到98.7%、99.56%、97.11%和99.51%,出水达到《畜禽养殖业污染物排放标准》GB(8978-96)一级排放标准。

UASB+A/O combined process is used to treat aquaculture wastewater. Influent COD was 6120 mg/L, BOD5 was 3850 mg/L, NH3-N was 450 mg/L, SS was 8300 mg/L, the effluent COD was 82 mg/L, BOD5 of 17 mg/L, SS was 41mg /L, ammonia of 13mg /L, the removal rate could reach 98. 7%, 99. 56%, 97. 11% and 99. 51% respectively. Effluent can meet the requirements of“The Discharge Standard Livestock Industry Pollutant” GB8978-96 I level emissions standards, namely: COD≤100mg /L, BOD5≤20 mg/L, NH3-N≤15 mg/L, SS≤70 mg/L.

目的 探讨环磷酰胺与顺铂联合化疗最佳给药剂量.方法 对120例卵巢癌和恶性淋巴瘤患者按完全随机分组法分为6组,分别按照环磷酰胺(CTX)500 mg/m2+顺铂(DDP) 40 mg/m2、CTX 500 mg/m2+ DDP 50 mg/ m2、CTX 500 mg/m2+ DDP 60 mg/m2、CTX 600 mg/m2+ DDP 40 mg/m2、CTX 600 mg/ m2+ DDP 50 mg/m2、CTX 600 mg/m2+ DDP 60 mg/m2静脉给药,每周1次,连用2周,比较各组疗效、不良反应.结果 各组间疗效差异无统计学意义(P＞0.05).高剂量化疗组(CTX 500 mg/m2+DDP 60 mg/m2、CTX 600 mg/m2+ DDP 60 mg/m2)白细胞抑制率较高,分别为72.6％、79.3％,淋巴细胞损伤最大,血肌酐、血尿素氮、丙氨酸氨基转移酶、天冬氨酸氨基转移酶水平显著下降,而最低剂量化疗组(CTX 500 mg/m2+DDP 40 mg/ m2)血象在正常范围,肾功能、肝功能损伤发生率低.结论 CTX与DDP联合化疗最佳给药剂量分别为500、40 mg/m2.

Objective To investigate the optimum doses of combined chemotherapy with cyclophosphamide (CTX) and cisplatin (DDP).Methods 120 cases of ovarian cancer and malignant lymphoma were divided randomly into 6 groups.Drugs were administered to each group:CTX 500 mg/m2 + DDP 40 mg/m2,CTX 500 mg/m2 + DDP 50 mg/m2,CTX 500 mg/m2 + DDP 60 mg/m2,CTX 600 mg/m2 + DDP 40 mg/m2,CTX 600 mg/m2 + DDP 50 mg/m2,CTX 600 mg/m2 + DDP 60 mg/m2.Drugs were administered intravenously once a week for 2 consecutive weeks.Changes in the efficacy and adverse reaction were compared among the groups.Results There was no significant efficacy difference among the groups (P ＞ 0.05).Leukocyte inhibition rate (72.6 ％ and 79.3 ％,respectively) and damage to lymphocyte were maximal in the high-dose chemotherapy groups (CTX 500 mg/m2 + DDP 60 mg/m2,CTX 600 mg/m2 + DDP 60 mg/m2),and the levels of creatinine,blood urea nitrogen,alanine aminotransferase (ALT) in serum and aspartate aminotransferase (AST) were reduced

采用 Mg 粉、Ni 粉混合，经球磨、烧结等不同工艺制备电弧阳极材料，通过直流电弧等离子体法制备了 Mg-Ni 储氢合金超细粉。用 XRD、TEM、ICP 分析手段研究了粉体的相组成、形貌、成分等。物相分析显示，Mg 粉、Ni 粉混合烧结后基本都转化为 Mg2 Ni 相；经直流电弧等离子体后，Mg 相增加，同时生成了 MgNi2相，证明在电弧作用时母相 Mg2 Ni 发生了分解生成 Mg 和Ni 相，Mg 与 Ni 再反应生成 Mg2 Ni 和 MgNi2。成分分析显示，烧结形成 Mg2 Ni 后再经电弧作用更利于 Ni 的析出。TEM 结果显示：Mg 颗粒形貌近似六方形，颗粒大小为100～600 nm；Mg2 Ni 颗粒附着在 Mg 大颗粒的表面，大小在10～50 nm 之间。纳米Mg2 Ni 颗粒附着在超细 Mg 粉上的这种结构将有助于改善 Mg 的吸放氢性能。

Mg-Ni based ultrafine powders were prepared through the direct-current (DC)arc plasma method using the arc anode material which was obtained by mixing,ball milling and sintering procedures from Mg and Ni powders.The phase components, morphology and composition of the powders were analyzed by the means of XRD,TEM and ICP.XRD analyses reveal the forma-tion of Mg2 Ni after sintering the Mg and Ni powders.After arc plasma evaporation,Mg content increases and MgNi2 forms at the same time,indicating that Mg2 Ni decomposes into Mg and Ni during the arc evaporation and they react again to form Mg2 Ni and MgNi2 phases.ICP analysis shows that sintered Mg2 Ni can release more Ni during arc evaporation.TEM observation shows that those Mg particles have hexagonal shape with size ranging from 100 nm to 600 nm.While those Mg2 Ni nano grains,about 10-50 nm,attached on the Mg ultrafine particles.Such kind of microstructure will be helpful for improving the hydrogen sorption property of Mg.

摸清贵州4个产茶区春茶中的微量元素含量,为评价其春茶质量提供参考,采用电感耦合等离子体质谱(ICP-MS)技术对贵州4个产茶区24个春茶样品中的Zn、Cu、Pb、Co、Mo等微量元素含量进行检测。结果表明:1)24个春茶样品中的Zn元素平均含量为54.43mg/kg,Co为0.085 3mg/kg,Mo为0.060 2mg/kg,Pb为3.95mg/kg,Cu为25.59mg/kg,Ni为11.41mg/kg,Cr为0.38mg/kg,稀土总量为1.375 2mg/kg。2)在4个产茶区春茶样品中,Zn元素的平均含量以遵义茶区最高,为62.53mg/kg;铜仁茶区最低,为49.32 mg/kg。Cu元素平均含量以黔南茶区最高,为29.54 mg/kg;安顺茶区最低,为20.59mg/kg;Pb元素平均含量以黔南茶区最高,为4.24mg/kg;铜仁茶区最低,为3.61mg/kg。Co元素平均含量以铜仁茶区最高,为0.091 6mg/kg;安顺茶区最低,为0.081 3mg/kg。Mo元素平均含量以安顺茶区最高,为0.062 2mg/kg;铜仁茶区最低,为0.058 6mg/kg。Cr元素平均含量以铜仁茶区最高,为0.41mg/kg;安顺茶区最低,为0.35mg/kg。Ni元素平均含量以安顺茶区最高,为15.17mg/kg;黔南茶区最低,为8.34mg/kg。结论:贵州4个产茶区春茶样品中的Zn元素含量较高,Co、Mo元素含量适中,Pb、Cu、Ni和Cr元素含量在国标绿色食品规定的茶叶质量安全范围。

To explore the contents of trace elements in spring tea from four tea-producing areas in Guizhou,and provide a reference for evaluating tea quality,inductively coupled plasma mass spectrometry (ICP-MS)was applied in the measurement of Zn,Cu,Pb,Co and Mo content in 24 tea samples,which were picked in four different districts in Guizhou.The experiment result indicated that the average content of Zn,Co,Mo,Pb,Cu,Ni,Cr and rare earth was respectively 54.43 mg/kg,0.085 3 mg/kg,0.060 2 mg/kg,3.95 mg/kg,25.59 mg/kg,11.41 mg/kg,0.38 mg/kg and 1.375 2 mg/kg.The average Zn content was the highest in Zunyi(62.53 mg/kg)and lowest in Tongren(49.32 mg/kg);Cu was the highest in Qiannan(29.54 mg/kg)and lowest in Anshun(20.59 mg/kg);Pb was the highest in Qiannan(4.24 mg/kg)and lowest in Tongren(3.61 mg/kg);Co was the highest in Tongren(0.091 6 mg/kg)and lowest in Anshun(0.081 3 mg/kg);Mo was the highest in Anshun (0.062 2 mg/kg)and lowest in Tongren (0.058 6 mg/kg);Cr was the highest in Tongren(0.41 mg/