塑料制品现如今被广泛制造和使用，全球塑料年产量从1950年的150万吨增加到了2022年的4.3亿吨，超过70%的塑料因处理不当而释放到环境中，成为“塑料垃圾”。随着时间的推移，进入环境中的塑料废弃物会发生破碎和消解，进一步分解成微塑料（MPs）。微塑料是指直径小于5 mm的塑料碎片，疏水性强，可以吸附持久性有机污染物和重金属等，通过协同作用产生联合毒性，影响生物多样性以及生态平衡，进而通过食物链 ...

Overuse could stunt muscle development and limit the body’s potential growth development. You will use a high performance liquid chromatography instrument (HPLC) to analyze caffeine in various ...

Ultraviolet (UV) lamps emit electromagnetic radiation with a wavelength between 10 nanometers (nm) and 400 nm, which is below the visible light spectrum. UV lamps have industrial uses in sterilization ...

自9月3日起，在央视八套和优酷平台热播的禁毒题材刑侦剧《雪迷宫》，以其独特的生活流悬疑叙事和东北地域特色，赢得了观众的广泛赞誉。编剧张鸢盎透露，剧中设定的1997年背景富含深意，那是中国公安部正式成立禁毒局的前夕，当时的警察在毒品问题上普遍缺乏专业知 ...

Nonetheless, they are there for today’s students and [Learn Engineering] has another gorgeous one covering LC oscillation. Check it out, below. If you are thoroughly grounded — no pun intended ...

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Hexavalent chromium is toxic to humans and aquatic life, presenting significant environmental and ecological dangers. Learn ...

Global UV LED Market is valued at approximately USD 1.00 billion in 2022 and is anticipated to grow with a healthy growth rate of more than 19.7% during the forecast period 2024-2032. Read the Market ...

Use precise geolocation data and actively scan device characteristics for identification. This is done to store and access ...

With the introduction of the Alliance™ iS HPLC System comes a new era of intuitive simplicity. Quality Control (QC) labs face stringent, ever-evolving compliance and data quality requirements to ...

A severe thunderstorm warning has been issued for parts of southeast Washington, currently affecting Pomeroy in Garfield ...