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Updated: Jul 1, 2025

Protocol for Microplastics Sampling on the Sea Surface and Sample Analysis
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Protocol for Microplastics Sampling on the Sea Surface and Sample Analysis

Published on: December 16, 2016

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在日本周围的浮动聚乙烯泡宏观和微型塑料的丰富性和潜在来源

Mao Kuroda1, Atsuhiko Isobe2, Keiichi Uchida3

  • 1Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato-ku, Tokyo 108-8477, Japan; Research Institute for Applied Mechanics, Kyushu University, 6-1 Kasuga-Koen, Kasuga 816-8580, Japan.

The Science of the total environment
|March 5, 2024
PubMed
概括

聚烯泡碎片碎片成微塑料,污染海洋环境. 减少泡水产养殖漂浮物可以减少日本海的海洋塑料污染.

关键词:
扩展聚氨酸的扩展聚氨酸.海洋垃圾是海洋中的垃圾.微塑料采样 微塑料采样数字建模 数字建模视觉观察 视觉观察 视觉观察

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Sampling, Sorting, and Characterizing Microplastics in Aquatic Environments with High Suspended Sediment Loads and Large Floating Debris

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Molecular Weight of Step-Growth Polymers01:08

Molecular Weight of Step-Growth Polymers

Step growth polymerization involves bi or multifunctional monomers. Bifunctional monomers react to form linear step growth polymers, whereas multifunctional monomers react to form non-linear or branched polymers.
As the step-growth polymerization involves step-wise condensation of monomers, the molecular weight also builds up eventually. Consequently, high molecular weight polymers are obtained at the late stages of the polymerization, where 99% of monomers have been consumed.
The extent of the...
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Primary Production01:06

Primary Production

The total amount of energy acquired by primary producers in an ecosystem is called gross primary production (GPP). However, of this energy, producers use some for metabolic processes, and some is lost as heat, decreasing the amount of energy available to the next trophic level. The remaining usable amount of energy is called the net primary productivity (NPP). In terrestrial ecosystems, NPP is driven by climate, while light penetration and nutrient availability drive NPP in aquatic ecosystems.
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