Using an On-Site Liquid Nitrogen Generator for NMR Cryogen Supply and Other Departmental Needs

摘要

The purpose of this article is to elevate awareness of an on-site liquid nitrogen generator and highlight the advantages of such a purchase for an undergraduate chemistry department. Immediate access to liquid nitrogen and required instrument specifications are discussed. Economic and environmental factors include annual cost savings, convenience of on-site availability of liquid and gas forms of nitrogen, and potential for revenue generation. A conservative estimate of $850 of annual savings over a typical service contract has already been realized. Use of the on-site generator has proven very beneficial and may be an attractive option for other departments to consider.