答:空心阴极灯(hollow cathode lamp,HCL)是一种特殊形式的低压辉光放电光源,空腔内用被测元素纯金属或合金制成圆柱形空心阴极,用钨或钛、锆做成阳极。灯内充Ne或Ar惰性气体,压力为数百帕。发射线波长在370.0nm以下的用石英窗口,370.0nm以上的用光学玻璃窗口,放电集中在较小的腔体内,以便能集中向外发射更高强度的...
Many Koreans suffer from a lack of sleep as a result of overworking, so any opportunity to relax and even take a nap is greatly appreciated. Mr. Healing is the perfect place to go when you’re on a short work or school break and you need to catch up on sleep. The cafe offers mass...
HCl is the formula for the chemical compound called 'hydrogen chloride.' From the formula, you can tell that it is made from atoms of hydrogen and chlorine. Hydrogen chloride is a colorless gas.Answer and Explanation: Become a member and unlock all Study Answers Start today. Try it now ...
What is the volume of HCl solution if 25.5 ml of 0.438 m Ba(OH){eq}_2 {/eq} is required to neutralize 0.754 m of HCl? Acid-Base Titration: Titration is an analytical technique that involves the reaction of an acid and a base (neutralization)...
侯氏制碱法为纯碱工业的发展做出了杰出的贡献。用此方法制得的工业纯碱产品中会含有一定量的氯化钠．为测定一种用侯氏制碱法生产的工业纯碱产品中碳酸钠的纯度，现取26.5g该工业纯碱样品．加入100g某溶质质量分数的稀盐酸，恰好完全反应，得到117.7g不饱和溶液。请回答下列问题： (1)加入稀盐酸发生反应的化学...
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Company Introduction: Langyi Chem is more than a manufacture and we are also work as distributor.Our goal is to be more than just a transactional distributor to our customers, we aim to be a true partner and extension of our customers' supply chains, as we are to...
1. Short for hardware compatibility list, HCL is a listing of hardware that is compatible with Microsoft Windows operating systems, such as Windows NT. Microsoft also refers to the HCL as the Windows Certified Products List. More information on how to search for hardware in the HCL is availabl...
Please work with your OEM vendor for an optimal configuration. Please note that some applications are memory intensive and may require the exact specifications to be met. In such cases, the application owner needs to identify the exact requirement. Our general guidance is you are allowed to modif...
What is 30feet Teflon ETFE Lined Steel Tank Container for Nitric Acid, Chemical tank container 30ft manufacturers & suppliers on Video Channel of Made-in-China.com.