The Department of Chemistry Instrumentation Facility (DCIF) is the shared instrument facility for the Chemistry Department located in the sub-basement (18-0090) of the Camille Edouard Dreyfus Building on the main MIT campus.
Special notice – the DCIF is operating with limited access until the MIT campus reopens, which we anticipate as mid-May, 2020. MIT users of the lab doing critical path research can continue to use the lab normally. External users with critical needs should contact Walt Massefski about making special arrangements for sample hand-off.
We are operating at half-staff on-site for now as a social distancing measure.
Please check back periodically for updates. If you have specific questions, please email Walt Massefski (listed under ‘Staff’ below).
About the DCIF
The lab is available to MIT scientists 24 hours/day, 7 days/week, and during normal business hours to everyone else. Staff are happy to help with instrument training, chemical structure problems and various analytical chemistry questions during the day.
The lab has a mix of automation and manual-use instruments. Automation instruments work 24/7 on a first-in, first-out basis and do not require special reservations for use. Manual-use instruments are reserved using in-house reservation software except during special walk-on times.
Currently, there are four permanent staff members and six student instrumentation stewards who provide instrument training, maintenance, repair and applications assistance to well over 500 users.
Special notice – training requests are not available while the Institute is operating under limited access rules, which we anticipate will extend until May 15, 2020. Please check back periodically for updates.
<<Important Note – our legacy reservation computer has been replaced; please use dcif-external2 to make reservations, and follow the instructions below>>
Reservations are made through the text-based Res1B program via a secure shell. Macintosh and Linux computers come with this capability pre-installed; Windows computers typically need to add an SSH program. SecureCRT is available to MIT students, faculty and staff on the MIT IS&T website. If you are an external user we can advise you as to applications that are available from third-parties.
A single page instruction summary for accessing dcif-external2 and reserving instrument time with Res1B (for all types of computers) is available here. You will receive your Res1B credentials as part of your instrument training for all non-automation instruments.
Users familiar with Res1B can access the reservation system directly with this browser shell (coming soon).
|AccuTOF DART||$36.75||$58.43||$251.00||per hour|
|AVIII 400||$26.25||$41.74||$179.29||per hour|
|AVIII 401||$26.25||$41.74||$179.29||per hour|
|Neo 402||$21.00||$33.39||$143.43||per hour|
|Neo 500||$31.50||$50.09||$215.15||per hour|
|Neo 501||$26.25||$41.74||$179.29||per hour|
|JEOL 502||$26.25||$41.74||$179.29||per hour|
|Neo 600||$36.75||$58.43||$251.00||per hour|
For External Organizations
Walt joined the DCIF in 2017 from the Dana-Farber Cancer Institute, with previous experience at Pfizer, Wyeth, and T2 Biosystems. Walt has a Ph.D. in Biochemistry from Brandeis University and a Master’s Degree in Chemistry from Wesleyan University, with a specialization in NMR. He has extensive experience in NMR structure determination of small molecule organics, as well as NMR relaxation studies of peptides, proteins, and nucleic acids.
John joined the DCIF in 2017 from BASF in North Carolina. John has diverse experience in NMR, ranging from small molecule structure determination in drug development to metabolomics to imaging, as well as significant synthetic experience. John holds a Master of Science in Chemistry from Indiana University.
Mohan joined the DCIF in 2017 from the University of South Florida, where he was a Research Assistant Professor. Mohan has extensive experience in mass spectrometry, including the analysis of peptides and molecular probes for imaging as well as significant synthetic experience with peptides. Mohan holds a Ph.D. in Bioorganic chemistry from the Indian Institute of Technology and a Master of Science from Bharathidasan University.
Bruce joined the DCIF in 2015 after retiring from the Merck Research Labs in Boston, where he was the NMR lab Director. Bruce has extensive NMR problem solving and novel NMR method development experience, both at Merck and at Varian NMR Systems, where he was an Application chemist for 11 years. Bruce holds a Ph.D. in Chemistry from the University of Wisconsin-Madison in the lab of Professor Barry Trost.
General Lab Contact
Goes to all DCIF Staff
Greg Cleveland, Radosevich lab, NMR
Sam Etkind, Swager lab, MS
Chuchu Guo, Nolan lab, MS
Victoria Marando, Kiessling lab, NMR
Sarah Jane Mear, Jamison lab, MS
Martin Riu, Cummins lab, NMR
Please note that the lab is unavailable for use every Thursday from 7am-10am for weekly instrument maintenance and cleaning.
We have developed a real-time tool to monitor instrument queues as an aid to planning experiments; this tool is available for the four Bruker automation instruments here.
Mass Spectrometry (MS)
The LCMS is a nominal mass Agilent 6125B mass spectrometer attached to an Agilent 1260 Infinity LC. It has an electrospray (ESI) source with fast polarity switching to measure positive and negative ions simultaneously. The diode array has a wavelength range of 190 to 640 nm, and a measurable m/z range of 100 to 1500 daltons. It uses ChemStation acquisition and data analysis software and is run in full automation mode using the Agilent Walkup software front-end. In addition to ChemStation data analysis, data files can be analyzed in MassHunter using the LC-SQ Translator.
The GCMS is a nominal mass Agilent 5977B mass spectrometer detector attached to a 7890B gas chromatograph with autosampler. It allows for the measurement of ions generated by electron impact (EI) or chemical ionization (CI) with m/z in the 10 to 1000 dalton range. The GC uses a 30m, 0.25mm, 0.25µm J&W HP-5ms Ultra Inert column with a maximum operating temperature of 325°C and has a maximum oven temperature of 400°C. It uses ChemStation acquisition software, ChemStation/MassHunter data analysis software, and can access the NIST library.
The AccuTOF is a high-resolution JEOL AccuTOF 4G LC-plus equipped with an ionSense DART (Direct Analysis in Real Time) source. The system operates with an accuracy of 5 ppm and a resolving power of greater than 10,000 (FWHM) in DART positive ion mode. The measurable mass range is m/z between 10 and 2000 daltons, and the system is capable of measuring both liquid and solid samples. msAxel acquisition and data processing software, and Mass Mountaineer data processing software with access to the NIST libraries allow for elemental composition in many cases. The system also has a syringe pump coupled ESI source that can be used upon request.
The MaldiTOF is a high-resolution Bruker Autoflex LRF Speed mass spectrometer with a measurable mass range of up to 450 kDa. It is capable of measuring in both linear and reflector mode, and in reflector mode 3-5 ppm mass accuracy can be achieved using an internal calibration standard. The data processing software contains modules for analyzing and sequencing peptides, proteins, and polymers.
The QTOF is a high-resolution Agilent 6545 mass spectrometer coupled to an Agilent Infinity 1260 LC system. It typically runs a Jet Stream ESI source, but can also be configured to run in APCI or APPI mode upon request. The system has a mass accuracy of 1-3 ppm using real-time calibration, with a mass resolving power of 45,000 (FWHM) at m/z of 2722. It has a measurable m/z of 50 daltons to 10 kDa. The system uses MassHunter data acquisition and processing software, with additional Qualitative Navigator, Workflow, Bioconfirm, and Quantitative analysis software packages.
Nuclear Magnetic Resonance (NMR)
The 400 is a two-channel Bruker Avance-III HD Nanobay spectrometer operating at 400.09 MHz. The system is equipped with a 5mm liquid-nitrogen cooled Prodigy broad band observe (BBO) cryoprobe, and runs in full-automation off of a SampleXpress 60 sample changer. The broadband channel extends from 31P down to 15N. Data is returned via standard email, or can be retrieved from an in-lab data server for up to six months. The system runs Bruker Topspin software version 3.5pl7 with IconNMR.
The 401 is a two-channel Bruker Avance-III HD Nanobay spectrometer operating at 400.13 MHz. The system is equipped with a 5mm liquid-nitrogen cooled Prodigy broad band observe (BBO) cryoprobe, and runs in manual mode, using a SampleXpress 60 for sample handling. The broadband channel extends from 31P down to 15N. Data can be retrieved from an in-lab data server for up to six months. The system runs Bruker Topspin software version 3.5pl7.
The 402 is a three-channel Bruker Avance Neo spectrometer operating at 400.17 MHz. The system is equipped with a 5mm BBFO SmartProbe capable of both routine proton, fluorine and broadband detection, as well as proton/fluorine double resonance, and runs in full-automation off of a SampleXpress 60 sample changer. The broadband channel extends from 19F down to 109Ag. The system can also be equipped with either a 5mm 13C TBI probe (capable of 13C/H/X triple resonance experiments) or a flow-NMR accessory on request. Data is returned via standard email, or can be retrieved from an in-lab data server for up to six months. The system runs Bruker Topspin software version 4.0.5 with IconNMR.
The 500 is a three-channel Bruker Avance Neo spectrometer operating at 500.34 MHz. The system is equipped with a 5mm liquid-nitrogen cooled Prodigy broad band observe (BBO) cryoprobe, and runs in full-automation off of a SampleXpress 60 sample changer. The broadband channel extends from 31P down to 15N. Data is returned via standard email, or can be retrieved from an in-lab data server for up to six months. The system runs Bruker Topspin software version 4.0.5 with IconNMR.
The 501 is a three-channel Bruker Avance Neo spectrometer operating at 500.18 MHz. The system is equipped with a 5mm BBFO SmartProbe capable of both routine proton, fluorine and broadband detection, as well as proton/fluorine double resonance, and runs in manual mode, using a SampleXpress 60 for sample handling. The broadband channel extends from 19F down to 109Ag. This system is available for VT experiments in the -100C to +100C temperature range. The system can also be equipped with either a 5mm 31P TBI probe (capable of 31P/H/X triple resonance experiments) or a 3.2mm HX solids probe capable of MAS speeds of up to 24kHz. The instrument is typically configured for routine solid-state NMR use each Thursday. Data can be retrieved from an in-lab data server for up to six months. The system runs Bruker Topspin software version 4.0.5.
The 502 is a two-channel JEOL ECZ spectrometer operating at 500.44 MHz. The system is equipped with a Royal HFX triple-resonance probe capable of switching between high-sensitivity proton or fluorine observe, or triple resonance (H/F/X) mode. The broadband channel extends from 31P down to 15N. This system runs in full-automation using a 24 sample carousel, and JEOL Delta software version 5.3. Data can be retrieved from an in-lab data server for up to six months.
The 600 is a four-channel Bruker Avance Neo spectrometer operating at 600.14 MHz. The system is equipped with a 5mm helium-cooled QCI-F cryoprobe capable of simultaneous 1H/13C/15N/19F detection, and operates in full-automation off of a SampleJet sample changer. The SampleJet is capable of handling all of 5mm, 3mm, and 1.7mm samples in automation, and has capacity for 96 standard 7 inch samples plus five 96-well racks of mixed diameter 4 inch tubes. The 96-well racks can be individually heated or cooled on request. Data is returned via standard email, or can be retrieved from an in-lab data server for up to six months. The system runs Bruker Topspin software version 4.0.5 with IconNMR.
The EPR is a Bruker EMX-Plus spectrometer with an ER4119HS high sensitivity X-band resonator for perpendicular mode, or E4116000 dual mode X-band resonator. Both can be cooled to cryogenic temperature with the aid of a Bruker/ColdEdge 4K waveguide cryogen-free cryostat. The standard operating temperature range extends from 4.5K at the low end to room temperature or above. The spectrometer runs Xenon 1.1b.155 software.
The FTIR is a Bruker Alpha II FTIR spectrometer with a Diamond Crystal ATR (attenuated total reflectance) accessory. It can measure typical liquid or solid samples directly without the need for additional sample preparation. The spectrometer runs Opus 7.8 software.
The Polarimeter is a Jasco model P-1010 configured for the standard 589nm Sodium D line. Filters are also available for the following wavelengths: 577, 546, 435, 365 nm. Users should supply their own polarimetry cells, although we have a couple available for occasional use.
The lab has an analytical scale Agilent Infinity 1260 II HPLC capable of handling HPLC and UHPLC columns of 2.1, 3, and 4.6 mm internal diameter available for method development. This system has a four stream solvent mixing system with binary pump, a diode array detector with the ability to measure from 190 to 640 nm, and a maximum pressure of 600 bar. It also has an autosampler capable of handling both individual vials and well plates.
The DCIF owns a Canon iPF8400s color poster printer (Installed 4/15/2016). Be careful when blowing up images and pictures beyond 100% as they can become pixelated and blurry. Use large fonts instead of blowing up pictures of text. DCIF Staff prints posters as they are received. We do not proofread, edit, alter or change any of the content, so be sure it is in final form before sending it to us for printing.
Click here to fill out the web form and upload your poster (requires certificates). You should know which account to bill for the poster charge. If you are unsure, check with your lab financial assistant/manager.
Instrument Training Guides
Below are a series of application notes that describe special applications or the use of DCIF instruments in the study of non-standard samples.
Nuclear Magnetic Resonance (NMR)
Mass Spectrometry (MS)
DCIF Seminar series
The DCIF sponsors seminars through our own Seminar series, gives guest lectures as part of the MIT Chemistry curriculum, and runs informal short courses on advanced topics in spectroscopy. Slides from some of these presentations can be found below.
DCIF Seminar series
Guest lectures in Chemistry