Quadrupole ICP-MS Laboratory - Solution Mode Job Info Form


For ICP-MS sample preparation information, please first visit: http://www.jsg.utexas.edu/icp-ms/solution/
(e.g., Samples are filtered stream waters; we wish to know Mo, As and Cd concentrations)
(e.g., 2% nitric acid v/v, aqueous, 0.3M acetic acid)
(samples not picked up within 3 months of analysis will be destroyed)

Sample Dilution

Samples should be diluted (ideally in 2% HNO3) so total dissolved solids (TDS) levels are ≤ 200 ppm. Higher TDS samples (≤ 2000 ppm) can be analyzed, but at the risk of matrix interferences and analytical drift. We strongly urge dilution to TDS ≤ 200 ppm.

Samples will be run against a suite of standards that are most similar to the highest concentration levels expected in samples. It is important to know about any dominant cations likely to be present (Na, Ca, K, Si, C, N, P) even if they are not of analytical interest for the study (for example, many biological buffer solutions are rich Na, P, K). In some cases, two dilutions may be required to analyze major elements and trace/ultra trace element constituents (for example carbonate phases to determine Ba/Sr, etc.).

If you dilute your own samples, we strongly urge that you include a processing+reagent blank. Samples may also be diluted in our lab using our trace-metal grade acid at no cost.
(Otherwise, dilution charges will be added)

Expected Dominant Cations after TDS Dilution

The following questions seek information about the major, minor, and trace element content of your diluted unknowns in order to optimize analytical conditions for the elements of interest.
(e.g., diluted seawater or saline groundwaters will be high in Na and Cl. If unknown, type "?")
(If unknown, type "?")
(If unknown, type "?")

Lab-Affiliated Publications (http://www.jsg.utexas.edu/icp-ms/publications/)

Knowing how the lab serves your research needs is important and helpful information. Please help us keep your publications up-to-date by responding to the three questions below. Your help with this is greatly appreciated!!!

(e.g., Gardner J.E., Befus, K.S., Watkins, J., Hesse, M. and Miller, N., 2012. Compositional gradients surrounding spherulites in obsidian and their relationship to cooling and spherulite growth. Bull. Volcanology 74, 1865-1879.)

Costs & Payment Method

Analytical costs for solution ICP-MS are charged on a per-analysis basis, inclusive of all unknowns, standards, blanks, checks, and replicates required to provide high-quality publishable data. This charge basis helps recover costs for analyzing small numbers of samples, methods involving large numbers of analytes, consumables (gases, tubing, cones, lenses, reference standards), data reduction time, and instrument maintenance. Per-unknown costs decrease with increasing numbers of unknowns. Collaborative projects* are charged at 75% and are expected to include co-authorship on derivative publications. Charges may also apply for sample preparation, data processing, user training and method development. Savings may be available for analyses run outside of business hours by qualified users (http://www.jsg.utexas.edu/icp-ms/courses/).

Solution ICP-MS User GroupPer analysis cost
IHE/State & Federal Agencies$40
*Remittance instructions will be provided with the invoice; **Bank information will be provided with the invoice. Any transfer charges from the originating institution/bank should be added to the invoiced amount.