{"id":244,"date":"2023-11-06T07:16:22","date_gmt":"2023-11-06T15:16:22","guid":{"rendered":"https:\/\/dornsife.usc.edu\/the-prakash-group\/?page_id=244"},"modified":"2023-11-06T07:16:23","modified_gmt":"2023-11-06T15:16:23","slug":"facilities","status":"publish","type":"page","link":"https:\/\/dornsife.usc.edu\/the-prakash-group\/facilities\/","title":{"rendered":"Facilities"},"content":{"rendered":"\n\n\n \n \n\n\n\n\n\n\n\n
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\n Loker Hydrocarbon Research Institute\n <\/h2>\n\n\n<\/div>\n \n \n <\/div>\n\n\n <\/div><\/div>\n\n\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n\n\n\n\n
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\n Equipment at LHI\n <\/h2>\n\n\n<\/div>\n <\/div>\n \n
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\n \n 400 MHz NMR spectrometer (equipped with VT controller and auto-sampler)\n\n <\/h3>\n \n \n
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NMR spectroscopy is a powerful tool for structural elucidation of molecules. Our group has exclusive access to a 400 MHz spectrometer. A variable-temperature (VT) controller facilitates the acquisition of data at different temperatures, permitting investigations of reaction intermediates and reaction kinetics.<\/p>\n\n\n\n<\/div>\n <\/div>\n\n\n <\/div>\n \n

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\n \n BET\n\n <\/h3>\n \n \n
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BET (<\/span>Brunauer<\/span>-Emmett-Teller) instruments provide valuable information on the specific surface area of a material. Our lab primarily uses this instrument to determine the average pore size of our custom carbon dioxide <\/span>adsorbants<\/span>.<\/span><\/p>\n\n\n\n<\/div>\n <\/div>\n\n\n <\/div>\n \n

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\n \n TGA instrument\n\n <\/h3>\n \n \n
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TGA (Thermogravimetric analysis) devices are commonly used to determine the gravimetric (weight) change in a material at variable temperature. Our lab employs this technique to determine stability of <\/span>out<\/span> solid <\/span>adsorbants<\/span> and the carbon dioxide adsorption capacity of our materials. Our modified set-up allows us to carry out these analyses under variable carbon dioxide concentrations, as low as a few ppm.<\/span><\/p>\n\n\n\n<\/div>\n <\/div>\n\n\n <\/div>\n \n

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\n \n DSC\n\n <\/h3>\n \n \n
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Differential Scanning Calorimetry (DSC) provides valuable information regarding the energetics of a physical or chemical process. Our system is optimized to work under variable atmospheres of carbon dioxide, <\/span>which assists in determining the heat of sorption.<\/span><\/p>\n\n\n\n<\/div>\n <\/div>\n\n\n <\/div>\n \n

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\n \n GC-MS\n\n <\/h3>\n \n \n
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Gas chromatography enables detailed analyses of complex reaction mixtures. Coupled with mass spectrometers, these machines can be used to monitor reaction progress and give molecular weights of the individual components of a reaction mix.<\/p>\n\n\n\n<\/div>\n <\/div>\n\n\n <\/div>\n \n

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\n \n Rotovap\n\n <\/h3>\n \n \n
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Rotary evaporation is a standard technique for concentrating aqueous and organic solutions, through vacuum distillation of volatile components. Our lab has 6 <\/span>rotovaps<\/span>, enabling high-throughput distillations.<\/span><\/p>\n\n\n\n<\/div>\n <\/div>\n\n\n <\/div>\n \n

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\n \n Automated Flash Column Chromatography\n\n <\/h3>\n \n \n
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Automated Flash chromatography provides facile and efficient separation of organic matter. Equipped with a UV detector, pump and touch-screen display, these devices provide avenues for rapid and effective purification of reaction mixture components. Our group has two flash chromatographers for normal and reverse phase.<\/p>\n\n\n\n<\/div>\n <\/div>\n\n\n <\/div>\n \n

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\n \n Argon glove box\n\n <\/h3>\n \n \n
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The storage and handling of pyrophoric and water-reactive materials is a challenge in any chemistry environment. Our argon glovebox allows us to safely handle and store a host of oxygen and water-sensitive reagents, making it the workhorse of our lab. It is fitted with two regenerable catalysts for oxygen removal and has programmable <\/span>provisions\/<\/span>failsafes<\/span> to tackle unexpected emergencies (leaks, tears, <\/span>etc<\/span>).<\/span><\/p>\n\n\n\n<\/div>\n <\/div>\n\n\n <\/div>\n \n

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\n \n FT-IR spectrometer\n\n <\/h3>\n \n \n
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Infrared spectroscopy is a useful tool in identifying functional groups. Our group has exclusive access to two IR spectrometers.<\/p>\n\n\n\n<\/div>\n <\/div>\n\n\n <\/div>\n \n

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\n \n Nitrogen glove box\n\n <\/h3>\n \n \n
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Our <\/span>nitrogen<\/span> glovebox <\/span>works on a constant flow of nitrogen and it <\/span>allows us to safely handle <\/span>less <\/span>oxygen and water-sensitive<\/span> reagents. It\u2019s also equipped with a small stir plate and a vacuum pump to perform inert reactions and filtrations.<\/span><\/p>\n\n\n\n<\/div>\n <\/div>\n\n\n <\/div>\n \n

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\n \n Analytical Balances\n\n <\/h3>\n \n \n
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Our analytical balances allow us to accurately weigh chemicals with a 0.0001g resolution.<\/p>\n\n\n\n<\/div>\n <\/div>\n\n\n <\/div>\n \n

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\n \n Ovens for drying glassware\n\n <\/h3>\n \n \n
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The forced<\/span> air<\/span> blower-assisted airflow design<\/span> of our multiple ovens <\/span>allows<\/span> for fast glassware drying<\/span><\/p>\n\n\n\n<\/div>\n <\/div>\n\n\n <\/div>\n \n

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\n \n Lindberg furnace\n\n <\/h3>\n \n \n
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Catalysts, sieves and other material\u2019s activation require very high temperatures. The Lindberg furnace provides<\/span> insulation and <\/span>uniform <\/span>heating<\/span>(up to 2000 \u00baF)<\/span>, with controlled heat-up rate, quick cool down and safety door-switch.<\/span><\/p>\n\n\n\n<\/div>\n <\/div>\n\n\n <\/div>\n \n

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\n \n Low\/high temperature Circulators\n\n <\/h3>\n \n \n
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Our ethylene glycol\/water circulators are suitable for cooling or heating applications. Most of our chillers work in a temperature range of -20 to 200 \u00baC.<\/p>\n\n\n\n<\/div>\n <\/div>\n\n\n <\/div>\n \n

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\n \n Ultrasound bath\n\n <\/h3>\n \n \n
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The ultrasonic bath serves as a tool for alternative reaction conditions where sonication is used instead of stirring<\/span> (it also provides heating)<\/span>. Homogenization is achieved <\/span>through cavitation and ultrasonic waves<\/span>. <\/span>These characteristics also make it suitable for glassware cleaning and sample homogenization<\/span><\/p>\n\n\n\n<\/div>\n <\/div>\n\n\n <\/div>\n <\/div>\n \n\n <\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":239,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-244","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"\nFacilities - The Prakash Group<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/dornsife.usc.edu\/the-prakash-group\/facilities\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Facilities - 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