CWECS-ICP-MS

Inductively coupled plasma mass spectrometry lab

Center for Water, Ecosystem, and Climate Science

Dr. Diego P. Fernandez, Research Assistant Professor

801-581-8657, diego.fernandez@utah.edu

Dr William P. Johnson, Professor

801-581-5033, william.johnson@utah.edu

Instrumentation

Agilent 7500ce, quadrupole mass-spectrometer with an octopole reaction system to preferentially remove polyatomic interferences. Autosampler Cetac AS 520; quartz Scott type, PTFE cyclonic and quartz double-pass spray chambers; platinum or nickel cones; quartz shielded torch.

Analyses

ICP-MS analyses are presently performed for aqueous samples, although organic matrices can be considered. Solid samples are also accepted, and the charge will be negotiated on the basis of the particular digestion procedure. Aqueous samples will be delivered at CWECS with the following considerations: volumes between 2 mL and 100 mL will be accepted, the lower limit depending on the concentration (2 mL is usually enough for concentrations in the order or parts per million). Preferably all samples should be filtered (0.45 mm) and acidified (to yield 2.4% nitric acid) and heated (either 12 hrs at 60° C in closed tube; or 1 hr at 95° C in an open tube). In case the analyses require any of these procedures and they are not performed by the client, CWECS can do it for an extra charge. Basic QA/QC reporting includes continuing calibration verification and blank verification. Spikes, serial dilutions, and duplicates can also be included upon request. 15-day turn-around-time (TAT) for samples not requiring digestion procedures. CWECS will not be responsible for sample collection, preservation, and generation of chain-of-custody forms, shipping and handling. CWECS will hold samples for 2 months.

Matrix matched external calibration quantitative

25-element suite with basic QA/QC (+/- 10 % or better precision)

Be, Na, Mg, Al, K, Ca, Fe, V, Cr, Mn, Co, Ni, Cu, Zn, As, Se, Mo, Ag, Cd, Sb, Ba, Au, Hg, Tl, Pb, and U

Additional elements available

Semi-quantitative 66-element scan

(+/- 25 % precision)

Be, Na, Mg, Al, K, Ca, Fe, V, Cr, Mn, Co, Ni, Cu, Zn, As, Se, Mo, Ag, Cd, Sb, Ba, Hg, Tl, Pb, and U

Li, B, Si, P, S, Cl, Ti, Ga, Br, Rb, Sr, Zr, Nb, Ru, Rh, Pd, Sn, Te, I, Cs, La, Ce, Pr, Nd, Sm, Eu, Gd, Dy, Er, Tm Yb, Lu, Hf, Ta, W, Re, Os, Ir, Pt, Au, and Th

Isotope Dilution Quantitative Analyses

(+/- 2 % or better precision):

Ba, Cd, Cr, Fe, Pb, Li, Mg, Ni, Se, Ag, Sr, Tl, Sn, Zn

Pricing examples

Quantitative 25-element suite

Internal (University of Utah): $18 for the first element plus $1.50 for each additional element (e.g. $54 for a 25 element suite)

External: $36 for the first element plus $3.00 for each additional element (e.g. $108 for 25 element suite)

Semi-quantitative 66-element scan

Internal (University of Utah): $50

External: $100

Single Element Isotope Dilution:

Internal (University of Utah): $40

External: $80

Silicate Rock or Biological Tissue Digestion:

Internal (University of Utah): $25

External: $50

Instrument use

Trained users are charged $ 27.50 per hour (University of Utah only)

Minimum charge: $75 (Internal), $150 (External).

Discounts available for orders larger than 100 samples.