浮游植物 phytoplankton(1953)   phytoplankton     DETERMINATION OF DIMETHYLSULFIDE IN SEAWATER AND DIMETHYLSULPHONIOPROPIONATE IN PHYTOPLANKTON CELLS BY HEADSPACE GC/FPD METHOD     顶空气相色谱法测定海水二甲基硫和浮游植物细胞二甲基硫丙酸的研究 短句来源     Study on Extraction of Photosynthetic Pigments from Phytoplankton by Organic Solvents     有机试剂提取浮游植物光合色素的研究 短句来源     Research on Characterization Analysis of Synchronous Fluorescence Spectra of Living Phytoplankton     活体浮游植物同步荧光光谱特征分析研究 短句来源     IMPROVEMENT ON METHOD FOR THE DETERMINATION OF THE CONCENTRATION OF PHYTOPLANKTON CHLOROPHYLL a     浮游植物体内叶绿素a测定方法的改进 短句来源     This paper presents a modified Headspace GC/FPD method for determination of dimethylsulfide (DMS) in seawater and dimethylsulphoniopropionate(DMSP) in phytoplankton cells. The effects of temperature, gas/liquid phaseratio, and salt concentration on headspace sensitivity were investigated. Theoptimum condition of these three factors are at 40℃，0.5% and 20% respectively.     建立了顶空GC/FPD测定海水中二甲基硫（DMS）和浮游植物细胞中二甲基硫丙酸（DMSP）的方法，并研究盐度、温度、气液相比DMS诸因素对DMS项空灵敏度的影响。 短句来源 更多          相似匹配句对     Study on Extraction of Photosynthetic Pigments from Phytoplankton by Organic Solvents     有机试剂提取浮游植物光合色素的研究 短句来源     IMPROVEMENT ON METHOD FOR THE DETERMINATION OF THE CONCENTRATION OF PHYTOPLANKTON CHLOROPHYLL a     浮游植物体内叶绿素a测定方法的改进 短句来源 查询“浮游植物”译词为用户自定义的双语例句     我想查看译文中含有：的双语例句 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法，我们为您准备了出自英文原文的大量英语例句，供您参考。   phytoplankton The NO threshold concentration exists according to the influence of exogenous NO on the marine phytoplankton growth. 例句来源       The other type can inhibit the phytoplankton growth, which is about μmol level or higher. 例句来源       Phytoplankton growth rate and microzooplankton grazing rate were obtained by using the dilution method developed by Landry and Hassett. 例句来源       They were mainly derived from the phytoplankton or bacteria and algae. 例句来源       Iron, which could help phytoplankton grow rapidly, is a micronutrient essential to the synthesis of enzymes required for photosynthesis in the oceanic environment. 例句来源       更多                    This paper presents a modified Headspace GC/FPD method for determination of dimethylsulfide (DMS) in seawater and dimethylsulphoniopropionate(DMSP) in phytoplankton cells. The effects of temperature, gas/liquid phaseratio, and salt concentration on headspace sensitivity were investigated. Theoptimum condition of these three factors are at 40℃，0.5% and 20% respectively.The method's detection limit is 20ng/L. The relative standard deviation is lessthan 6%, the average recovery rate is 106%, relative error is ...             建立了顶空GC/FPD测定海水中二甲基硫（DMS）和浮游植物细胞中二甲基硫丙酸（DMSP）的方法，并研究盐度、温度、气液相比DMS诸因素对DMS项空灵敏度的影响。该法对DMS测定的相对标准偏差均小于6％，平均回收率为106％，最低检出限为20ng/L。细胞DMSP先经碱作用转化为DMS，在50℃下作用时间不少于6h，峰高与浓度的双对数线性相关系数大于0．99。对1994年冬、1995年夏采自胶州湾的实际样品分析结果表明，本法可用于一般海洋样品的测定。 文摘来源          The method for the determination of the concentration of phytoplankton chlorophyll a (the cool acetone method which used 90% cool acetone as the extraction agent of chlorophyll a) was improved. In the modified method,the sample was made to pass through freezing,quick extracting with hot acetone at 50℃,then determined after 2 hours' placement. The analysis result of variance showed that the two determining methods didn't have significant difference, but the modified method reduced the analytical course and t...             对丙酮萃取分光光度法测定浮游植物体内叶绿素a的方法进行改进。改进法在样品经过冷冻、50℃热丙酮快速提取并放置2h后进行测定。对改进前后方法测定结果的方差分析表明,方法改进前后测定结果不存在显著性差异。方法改进后简化了操作,提取时间由原来的8～20 h缩短为1.5～2.5h。 文摘来源          Biogenic colloids produced by Chlorella sp. and Isochrysis galbana were isolated by cross-flow ultrafiltration from alga culture for aldose analysis. The results showed that it consisted of rhamnose, L-fucose, D-arabinose, D(+)xylose, D-mannose, glucose and D-galactose. D-arabinose and D-galactose were overwhelmingly dominant, and rhamnose was on the contrary. The abundance of L-fucose and glucose in Chlorella sp. colloids was as 2～3 times high as that in Isochrysis galbana colloids. However, D(+)xylose and...             采用切向超滤技术从微藻培养液浓缩得到胶体,分析其多糖的醛糖组成.结果表明,小球藻与球等鞭金藻胶体的多糖由鼠李糖、L 岩藻糖、D 阿拉伯糖、D(+)木糖、D 甘露糖、葡萄糖和D 半乳糖等7种醛糖组成.D 阿拉伯糖和D 半乳糖占绝对优势,鼠李糖丰度很低.小球藻胶体的L 岩藻糖和葡萄糖是球等鞭金藻胶体的2～3倍,而D(+)木糖和D 甘露糖比球等鞭金藻低27%～32%.本文的结果印证了浮游植物是海洋胶体的生物来源之一. 文摘来源   << 更多相关文摘         相关查询: 浮游植物动态 浮游植物生产量 浮游植物种类 浮游植物量 浮游植物碳的 浮游植物吸收系数 微浮游植物 浮游植物生物量 浮游植物数量 真浮游植物 湖沼浮游植物 水上浮游植物  对查询结果不满意

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