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海洋生物活性肽的功能、制备技术与作用机制研究进展 期刊论文
海洋科学, 2021, 卷号: 45, 期号: 10, 页码: 123-132
作者:  杨贵兰;  秦松;  李文军;  李亚
Adobe PDF(1369Kb)  |  收藏  |  浏览/下载：529/133  |  提交时间：2021/12/01
海洋生物活性肽  制备方法  功能活性  作用机制  
烟台夹河口外柱状沉积物还原性无机硫、活性铁的变化特征及其相互关系 期刊论文
海洋科学, 2018, 卷号: 42, 期号: 8, 页码: 90-97
作者:  姜明;  赵国强;  李兆冉;  盛彦清
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还原性无机硫  活性铁  深层柱状沉积物  硫化度  矿化度  Reduced inorganic sulfur  Reactive iron  Deep core sediments  Degree of pyritization  Degree of sulfidity  The distribution characteristics and coupling mechanism of reduced inorganic sulfur (RIS)and reactive iron in marine core sediments are closely related to the evolution of environment quality.In this study,an improved cold diffusion method and hydrochloric acid extraction method were applied to the acid-volatile sulfur (AVS),pyrite sulfur (CRS),elemental sulfur (ES),and reactive iron [Fe (Ⅱ)and Fe (III)] analyses.The distribution characteristics and coupling mechanism of S and Fe were investigated based on a core sediment 4 meters deep collected in the northern sea area of the mouth of Jiahe River,Yantai.The results showed that the RIS in sediments was dominated by CRS,followed by AVS and ES.The content of AVS presented a narrow range with depth,whereas the CRS and ES were higher at the top and bottom layers than the middle layer  reactive iron was dominated by Fe (II),which increased with depth,while Fe (Ⅲ)gradually decreased with depth.Most of the Fe (III)was reduced to the disssolved Fe(II),which was combined with the soluble H_2S of the sulfate-reducing bacteria to produce CRS and ES in the deep layer,resulting in their accumulation at the bottom of core sediments.Furthermore,this study showed that reactive iron was not a limiting factor for the accumulation of RIS with lower degree of pyritization and degree of sulfidity.  
海水中磷酸盐的检测方法研究进展 期刊论文
海洋科学, 2013, 卷号: 37, 期号: 11, 页码: 116-125
张海云; 张庆; 韩海涛; 潘大为; 秦伟
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磷酸盐测定:5796  磷钼蓝分光光度法:4474  海水:2873  检出限:2809  检测方法:2636  磷钼酸盐:2293  分光光度法测定:2245  流动注射分析:2203  离子色谱法:2041  研究进展:1987