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Full-Text Articles in Physical Sciences and Mathematics
Optimizing Fluorescence Pmt Gain And Excitation Wavelength For Hplc Dl-Amino Acid Detection, Daranthea Amanda Atmadja, Aaron Jacobs
Optimizing Fluorescence Pmt Gain And Excitation Wavelength For Hplc Dl-Amino Acid Detection, Daranthea Amanda Atmadja, Aaron Jacobs
Honors Scholars & Undergraduate Research Poster Symposium Programs
Amino acids exist as enantiomers that can be separated and detected using HPLC-FLD. An optimal PMT gain and wavelength of excitation must be determined to lower the limit of detection (LOD) and quantitation (LOQ) as increasing the PMT gain amplifies the signal on the HPLC-Spectra. The HPLC-FLD spectra of OPA-IBLC derivatized histidine was measured at PMT gain 5 and 7 for the excitation wavelengths of 340-, 260-, and 240- nm. Hence, the optimal excitation wavelength and PMT gain can be determined by comparing the fluorescence spectra.
Past, Present, And Future– A Review Of Berrien County Water And Great Lakes Water Resources And Quality, Jongwan Bae
Past, Present, And Future– A Review Of Berrien County Water And Great Lakes Water Resources And Quality, Jongwan Bae
Honors Scholars & Undergraduate Research Poster Symposium Programs
The decrease in water quality for environmental and drinking water has been prevalent in the Great Lakes region, where industrialization, agricultural development, and population increase have contributed substantially. Looking through historical reports and the present, the degradation in water quality will likely continue. Our research intends to use inductively coupled plasma atomic emission spectroscopy to create a methodology to quantitatively detect various heavy metals and other elements from any water source. Current research has been on the determination of a niche in water testing and the creation of an infographic, as well as data of simple water samples.
Copper (Ii) Sequestration By Pamam Dendrimers In Tap Water, Hannah Castillo
Copper (Ii) Sequestration By Pamam Dendrimers In Tap Water, Hannah Castillo
Honors Scholars & Undergraduate Research Poster Symposium Programs
Dendrimers are nanomaterials that are widely studied for a variety of applications because of their distinctive properties. One such property of, specifically, the generation 2-PAMAM Dendrimer is its particular affinity for copper (II) ions. This could be influential in selective heavy metal extraction, particularly in contaminated water. Our research aims to test the sequestration and selectivity of PAMAM dendrimers with amine surface groups for copper (II) ions in a chemical environment with interfering species, such as tap water, using Inductively Coupled Plasma spectroscopy. Ongoing research has involved developing methods for dendrimer extractions and creating calibration curves for standards to ensure …
Determining The Origins Of Helix Glitches In Ligo’S H1 Detector, Kara Shepard
Determining The Origins Of Helix Glitches In Ligo’S H1 Detector, Kara Shepard
Honors Scholars & Undergraduate Research Poster Symposium Programs
The LIGO detectors are ultra-sensitive, making them susceptible to glitches from the noise that can block gravitational wave signals. In order to reduce the number of glitches that occur in the detector, the cause of the glitches must be found. I am researching the Helix glitch to try and determine its origin. This is accomplished by studying the times at which the glitch occurred in the detector and then looking for factors that may have caused a glitch to happen around the same time, to see if there are any correlations.