Analytical Services

Since the late 1970s, the Air Quality Research Lab (AQRC) has been a leader in the characterization and analysis of the microscopic airborne particles that cause regional haze, the kind of air pollution that impairs visibility over widespread areas. Over the years, a major thrust of our research has been the development and refining of techniques and equipment necessary for the analytical component of this work. We are now pleased to offer our analytical expertise and advanced equipment to the larger research community. To learn more about these services or should you wish to place an order with us, contact Principal Investigator Nicole Hyslop or the method expert listed for each technique.

XRF Calibration Standards & Reference Materials

The AQRC measures the concentrations of chemical elements in samples using energy dispersive X-ray fluorescence (XRF). We specialize in measuring airborne particulate matter sampled on filters but can also analyze liquid, solid or powder samples.

Our laboratory is equipped with five PANalytical Epsilon 5 XRF analyzers. Each analyzer can be programmed to use up to 15 secondary excitation targets, allowing the analysis to be customized to provide optimal sensitivity for the elements of interest with comprehensive coverage of the periodic table. For questions on ordering analytical services contact Krystyna Trzepla or Nicole Hyslop.

Learn more about Epsilon products here.

TOA Carbon

The AQRC Quartz Carbon Lab is equipped with the top-notch OCEC instruments for Thermal/Optical Analysis (TOA). Our scientists and technicians can analyze particulate matters collected on quartz-fiber filters for organic carbon, elemental carbon, carbonate carbon, and total carbon using a variety of applications. For questions on ordering analytical services contact Krystyna Trzepla or Nicole Hyslop.

FT-IR analysis of Teflon (PTFE) filter samples

FT-IR is a non-destructive which allows the filter samples to be analyzed by other non-destructive methods such as gravimetric for mass, XRF for elements, HIPS for light absorption, or destructive methods such as ion chromatography for ions or GC/MS for organic compounds after FT-IR analysis. FT-IR analysis and multivariate calibrations measure TOR-equivalent OC and EC, Functional groups such as aliphatic CH, carboxylic acids, carboxylates, non-acid carbonyl and alcohol OH (carbohydrates), Inorganic ions including sulfate, nitrate and ammonium, Soil elements and PM mass.

For questions on ordering services contact Ann Dillner.

RDI Sampling and Analysis

Rotating Drum Impactor (RDI) samplers collect size-segregated samples with variable time resolution. Multiple non-destructive analyses of RDI samples are available, including synchrotron-induced X-Ray Fluorescence (SXRF) that provides quantitative elemental data of elements.

Primary contacts: Yongjing Zhao and Nicholas Spada.