Instruments

The diode array detector simultaneously monitors changes in UV-visible absorbance at multiple wavelengths, making it useful for kinetic analyses. Students use this instrument in Analytical Chemistry (CHEM 311), Instrumental Methods of Chemical Analysis (CHEM 312), Physical Chemistry I (CHEM 309), and Physical Biochemistry (CHEM 316). Location: Clement 122.

This dual-beam UV-visible spectrometer measures UV-visible absorbance across the ultraviolet and visible regions of the spectrum. Students use this instrument in Analytical Chemistry (CHEM 311), Instrumental Methods of Chemical Analysis (CHEM 312), Physical Chemistry I (CHEM 309), and Physical Biochemistry (CHEM 316). Research students working with Professors Hanson and Hill use this instrument. Location: Clement 122.

These miniature UV-visible spectrometers measure absorbance and have a compact design that allows them to be moved easily between laboratories. Students use these instruments in Introductory Chemistry I (CHEM 111), Introductory Chemistry II (CHEM 112), Environmental Chemistry (CHEM 230), and Analytical Chemistry (CHEM 311). Location: Clement 213 and Clement 207.

This fluorescence spectrophotometer measures light emission from chemical and biological samples. Students use this instrument in Instrumental Methods of Chemical Analysis (CHEM 312). Location: Clement 122.

This plate reader can make UV-visible absorbance and fluorescence measurements of samples in standard well plates. It is particularly use for rapid analysis of many samples. Students use this instrument in Analytical Chemistry (CHEM 311), Instrumental Methods of Chemical Analysis (CHEM 312), and Biological Chemistry (CHEM 317). Research students working with Professors Ashby and Kovarik use this instrument. Location: Clement 122.

This spectrometer measures the infrared absorbance spectra of solids, liquids, and solutions using attenuated total reflectance. Students use this instrument in Elementary Organic Chemistry I (CHEM 211) and Elementary Organic Chemistry II (CHEM 212). Research students working with Professors Curran, DePhillips, and Parr use this instrument. Location: Clement 301.

This spectrometer measures infrared absorbance using salt plates, solution cells, or attenuated total reflectance and includes an infrared microscope for microscale analysis. Students use this instrument in Instrumental Methods of Chemical Analysis (CHEM 312). Research students working with Professors DePhillips and Hill use this instrument. Location: Clement 122.

This confocal Raman microscope measures Raman spectra and enables microscopic chemical analysis of samples. Students use this instrument in Instrumental Methods of Chemical Analysis (CHEM 312) and Physical Biochemistry (CHEM 316). Research students working with Professors DePhillips, Hanson, and Hill use this instrument. Location: Clement 122.

This instrument, a standard dual beam fluorimeter, is located in Clement 122. Students gain instruction on the use of this instrument in Instrumental Methods of Chemical Analysis (Chem-312).

The OLIS Cary-16 instrument is located in Clement 122. Circular dichroism (CD) is often used to assess the three-dimensional shapes of proteins. The Cary-16 is an older CD instrument, but it has been modernized recently by an upgrade done by OLIS. Students learn how to use this instrument in Physical Biochemistry (Chem-316). Research students working with Professors Curran and Prigodich also use this instrument.

This instrument, which is used in the organic chemistry (Chem-211 and Chem-212) labs, is located in Clement 301.

The Jasco P-2000 Digital Polarimeter is housed in Clement 122. It is primarily used by Professor Brindle and her research students. Many compounds possess the property of having non-identical mirror image forms. These two mirror image forms can have nearly identical properties, however, the differ in their interaction with plan-polarized light. This instrument uses plane polarized light to discriminate between the two forms and allow for the determination of the ratio of the two mirror image forms.

This instrument was obtained in 2007 with a grant from the National Science Foundation, and it is located in Clement 127. We have two probes that can be used with this instrument, a broad-band probe and an inverse probe. The instrument is also equipped with a 24 tube autosampler (NMR CASE). The instrument utilizes the TopSpin software and can be run manually or automatically (using ICONNMR). The Bruker NMR is used by students taking organic chemistry (Chem-211 and Chem-212), and by students in the NMR course (Chem-418); it is also used in Instrumental Methods of Chemical Analysis (Chem-312). Research students working with Professors Curran, Brindle, Parr and Prigodich routinely use this instrument.

This is a benchtop NMR located in Clement 301A. It was partly purchased with funds donated by Wally Ewart ’61. It is used by students in Elementary Organic Chemistry I and II.

This instrument is housed in Clement 122. It is primarily used for making measurements in analytical chemistry. Students in Analytical Chemistry (Chem-311) and Instrumental Methods of Analysis (Chem-312) will learn how to operate this instrument. Students doing research with Professors Kovarik or Ashby are likely to use this instrument. This instrument utilizes an electron impact mass spectrometer.

This instrument is housed in Clement 301A. It is primarily used for analyzing samples of compounds generated from the organic chemistry laboratory course (Chem-211 and Chem-212), and from students doing research in organic chemistry. Students working with Professor Brindle frequently use this instrument. This instrument utilizes an electron impact mass spectrometer.

This instrument is housed in Clement 122. The chromatograph is a high-performance liquid chromatograph (HPLC) that is equipped with a sample collector. It is connected to an atmospheric-pressure chemical ionization/electrospray mass spectrometer. The mass spectrometer can be used without the HPLC. This instrument is primarily used in the Instrumental Methods of Chemical Analysis (Chem-312) laboratory, and by the research students of Professors Curran, Henderson and Prigodich.

This instrument is housed in Clement 317. It has an Hitachi HPLC system connected to the AB Sciex 4000 QTrap mass spectrometer. The mass spectrometer can be used without the HPLC. This instrument is primarily used in the Instrumental Methods of Chemical Analysis (Chem-312) laboratory, and by the research students of Professors Curran, Church and Morrison.

The Trinity Chemistry Department has four of these instruments. Two are housed in Clement 317, while the other two can be found in Clement 213. Each one is equipped with either a variable wavelength UV-visible detector or a diode array detector. One of the instruments can be used in both analytical and semi-prep modes. All of the instruments are equipped with autosamplers and column ovens. These instruments are used in many laboratory courses, including Introductory Chemistry I (Chem-111), Analytical Chemistry (Chem-311) and Instrumental Methods of Analysis (Chem-312). Research students working with Professors Church, Curran, and Morrison are likely to use one of these instruments.

This liquid chromatograph is located in Clement 317C. It is primarily used by Prof. Jon Ashby and his research students.

This mass spectrometer, which was installed in March 2013, is housed in Clement 317. It is typically set up with the DART ion source, but can also be used with an electrospray source. The instrument has so far been used in the nstrumental Methods of Chemical Analysis (Chem-312) laboratory, and by the research students of Professors DePhillips, Morrison and Brindle. Plans are underway to include the use of this instrument in the introductory and organic chemistry courses.

Trace metals can be detected and identified using inductively coupled plasma mass spectrometry (ICP-MS). The Trinity Chemistry Department operates an ICP-MS instrument out of Clement 122. Students learn about this instrument in Instrumental Methods of Chemical Analysis (Chem-312). Research students working with Professors Bazilio and Gourley (Environmental Science) can be found using this instrument.

This instrument is housed in Clement 317. It is equipped with an autosampler, cooling system, and photodiode array and laser-induced fluorescence detectors. It is used primarily by the Kovarik lab and the Church lab for research and is available for use in project labs in Analytical Chemistry (Chem 311) and Instrumental Methods of Chemical Analysis (Chem 312).

This instrument was obtained in 2010 with a grant from the National Science Foundation, and it is located in Clement 122. The diffractometer is used by students in Descriptive Inorganic Chemistry (Chem-314). It is also used by research students working with Professors Moyer and Geiss (Environmental Science).

The Parr hydrogenator is used to add hydrogen to molecules, typically organic molecules. It is located in the Clement 207, the physical chemistry laboratory. Research students working with Professor Curran routinely use this instrument.

The Trinity Chemistry Department has a Meyer solvent dispensing system that is used to obtain dry solvents. At present, it is set up to dispense dry ether, tetrahydrofuran (THF), methylene chloride and acetonitrile. This apparatus is located in Clement 301, the teaching laboratory for organic chemistry. Students doing research with Professors Curran, Nicaise and Prigodich are likely to use this apparatus.

The ultracentrifuge is often used when isolating large biomolecules (proteins or DNA for example) from biological samples. This ultracentrifuge is used in the laboratory for Physical Biochemistry (Chem-316), and it is located in Clement 207.

Removing solvent via freeze drying is a useful technique when purifying chemicals isolated from biological sources. This freeze dryer is used by students in Physical Biochemistry (Chem-316) and it is located in Clement 207.

The Chemistry Department has a glovebox for researchers who need to manipulate chemicals under inert atmosphere conditions. The M Braun LabStar Pro Glovebox is located in Clement 112, and has been useful for students working with Professors Brindle and Parr.

The Perkin Elmer DSC 8000 differential scanning calorimeter (DSC) is located in Clement 207, the teaching lab for physical chemistry. The DSC can measure the amount of heat lost or absorbed when a sample undergoes a phase change. This instrument is used by students in Physical Chemistry I (Chem-309).

The Trinity Chemistry Department has a Parr 1455 solution calorimeter, which is primarily used in the lab for Physical Chemistry I (Chem-309). It is housed in Clement 207.

The Trinity Chemistry Department has a Parr 1455 bomb calorimeter, which is primarily used in the lab for Physical Chemistry I (Chem-309). It is housed in Clement 207.

Cyclic voltammetry is an electrochemical technique used by chemists to observe and measure the oxidation potentials of chemical systems. The Trinity Chemistry Department can make these measurements using a WaveNow potentiostat obtained from Pine Research Instruments. Students taking Instrumental Methods of Chemical Analysis (Chem-312) learn how to operate the potentiostat.

This instrument can be used to perform a variety of voltammetry experiments.  Students taking Instrumental Methods of Chemical Analysis (Chem-312) learn how to operate the Nano-Band Explorer.