|
NEWS CENTER
|
Industry News
可用于人體微量元素檢測的方法有:同位素稀釋質(zhì)譜法、分子光譜法、原子發(fā)射光譜法、原子吸收光譜法、 X 射線熒光光譜分析法、中子活化分析法、生化法、 揮發(fā)油又稱精油,英文為 essential oils，是存在于植物中的一類具有芳香氣味、可隨水蒸氣蒸餾出來而又與水不相混溶的揮發(fā)性油狀成分的總稱。揮發(fā)油為一混 能夠檢測各類有機(jī)及無機(jī)固體、液體、氣體等樣品中含水率的的儀器叫做水分測定儀，按測定原理可以分類物理測定法和化學(xué)測定法兩大類。物理測定法常用 轉(zhuǎn)子過電壓保護(hù)裝置又稱作跨接器，其作為大型發(fā)電機(jī)轉(zhuǎn)子主保護(hù),還承擔(dān)著滅磁的作用，正確、安全地對該裝置進(jìn)行定期檢驗(yàn)是發(fā)電機(jī)正常工作的前提。 磁導(dǎo)率μ等于磁介質(zhì)中磁感應(yīng)強(qiáng)度B的微分與磁場強(qiáng)度H的微分之比，即μ=dB / dH。通常使用的是磁介質(zhì)的相對磁導(dǎo)率μr，其定義為磁導(dǎo)率μ與真空磁導(dǎo)率μ0 氨氮測定儀依測試標(biāo)準(zhǔn)的不同，有A、B類型。其中A型采用納氏試劑比色法GB7479-87;B型采用國標(biāo)GB7148-81及國際ISO7150/1-1948所規(guī)范的水楊酸光度法為基本測試手段，輔以樣品比色 |
| ABOUT | PRODUCTS | NEWS | APPLICATION | SERVICES | CONTACT |
| Company P?rofile | Industrial? Endoscopes | Company News | Aeronautics and Astronautics | Leasing Services | Head Quarter |
| Brand Culture | Police Endoscopes | Industry News | Police and Security | Detection Services | Marketing Network |
| Team demeanor | Automotive Endoscopes | Media Coverage | Automobile manufacturing | Product Videos | Follow Us |
| Certificates | Pipe Endoscopes | Industry Knowledge | Energy and Electricity | Customized Services | Feedback |
| Casting Endoscopes | Automobile maintenance | ||||
| Other EndoScopes | |||||
| TEL：0755-84863736 | E-MAIL：sales@jeettech.com | ADDRESS：1b906, Longgang smart home, 78 Baohe Avenue, Baolong community, Longgang District, Shenzhen City, Guangdong Province | |||
