Abstract: A method includes supplying a reagent to a column, where the column is configured to purify an element from a sample matrix for isotopic analysis. The method also includes loading the column with the sample matrix, and supplying a second reagent to collect the element retained by the column. The method further includes loading the column with a second sample mixture, and collecting an element from the second sample mixture retained by the column. A column configured to separate an element from a sample matrix for isotopic analysis includes a resin configured to retain the element. The column also includes a first frit disposed of a first end of the column and a second frit disposed of a second end of the column. The column is configured to receive a first reagent in a first flow direction and a second reagent in a second flow direction different from the first flow direction.

Abstract: Systems and methods are described to concentrate a remote sample for analysis. A sample concentration system embodiment includes, but is not limited to, a plurality of valves including at least a first valve, a second valve, and a third valve; a plurality of columns including at least a first column and a second column, the first column fluidically coupled to the first valve, the second column fluidically coupled to the second valve; and a flow meter coupled with the third valve, the flow meter fluidically coupled with each of the first column and the second column when the plurality of valves is in a first flow path configuration to measure an amount of the liquid sample passed through the first column and the second column, wherein the plurality of valves includes a second flow path configuration and a third flow path configuration.

Abstract: Systems and methods for automatically packing resin into and unpacking resin from a reusable separation column for sample analysis are described. A method embodiment includes, but is not limited to, introducing a slurry of resin to a reusable sample separation column to pack the reusable column with resin; introducing a sample solution to the reusable sample separation column; and unpacking the resin from the reusable sample separation column with a flow of liquid unpacking reagent and gaseous material.

Abstract: Systems and methods for inline and automatic dilution of chemicals of interest for speciation and subsequent analysis by ICP spectrometry are described. A system embodiment includes a first valve to receive a sample into a holding loop; a plurality of syringe pumps coupled to the first valve to deliver an inline diluted sample from the first valve; and a second valve coupled to the first valve to receive the inline diluted sample from the first valve into a sample holding loop coupled to the second valve, the second valve configured to couple to at least one of an eluent source or a carrier fluid source to receive at least one of an eluent fluid or a carrier fluid to transfer the inline diluted sample from the sample holding loop to a speciation column to separate one or more species from the inline diluted sample.

Abstract: A system includes a sample selector device, a chromatographic column selectively connectable to the sample selector device, and a spectrometry analysis device selectively connectable to the sample selector device. The sample selector device is configured to supply multiple individual samples to the chromatographic column to separate components of the individual samples. The sample selector device is also configured to store the separated components of the individual samples. The sample selector device is further configured to supply the separated components of the individual samples to the spectrometry analysis device. In embodiments of the disclosure, the components of the individual samples can be chromatographically separated while the spectrometry analysis device is offline.

Abstract: Systems and methods for measuring analytes (e.g., potassium) under hot plasma conditions of ICP analysis systems (e.g., ICP-MS, ICP-AES, etc.) are described, where a membrane desolvation unit and nitrogen flow gas are included to reduce Argon interferences. A system embodiment includes a heated spray chamber configured to receive a liquid sample and a sample gas to aerosolize the liquid sample; a first condenser coupled to the heated spray chamber; a second condenser coupled to the first condenser; a heated membrane coupled to the second condenser; and a gas introduction component coupled to the heated membrane to receive a flow of gas and to combine the flow of gas with a dried sample aerosol leaving the heated membrane, wherein the flow of gas is introduced at a rate of approximately 2.67 percent to approximately 20 percent of a flow rate of the sample gas.

Abstract: Systems and methods for inline and automatic dilution of chemicals of interest for speciation and subsequent analysis by ICP spectrometry are described. A system embodiment includes a first valve to receive a sample into a holding loop; a plurality of syringe pumps coupled to the first valve to deliver an inline diluted sample from the first valve; and a second valve coupled to the first valve to receive the inline diluted sample from the first valve into a sample holding loop coupled to the second valve, the second valve configured to couple to at least one of an eluent source or a carrier fluid source to receive at least one of an eluent fluid or a carrier fluid to transfer the inline diluted sample from the sample holding loop to a speciation column to separate one or more species from the inline diluted sample.

Abstract: A system embodiment includes, but is not limited to, a syringe pump operably coupled to a desolvation unit, the desolvation unit coupled to a sample analyzer configured to measure an intensity of one or more analytes in a sample solution provided through operation of the syringe pump; and a controller operably coupled to the syringe pump, the controller configured to receive the intensity of the one or more analytes measured by the sample analyzer, determine whether the intensity exceeds a threshold difference of an intensity of at least one standard measured by the sample analyzer, and adjust one or more control parameters of the syringe pump when the intensity of the one or more analytes exceeds the threshold difference to control a flow rate of the sample solution introduced to the sample analyzer.

Abstract: Systems and methods are described to concentrate a remote sample for analysis. A sample concentration system embodiment includes, but is not limited to, a plurality of valves including at least a first valve, a second valve, and a third valve; a plurality of columns including at least a first column and a second column, the first column fluidically coupled to the first valve, the second column fluidically coupled to the second valve; and a flow meter coupled with the third valve, the flow meter fluidically coupled with each of the first column and the second column when the plurality of valves is in a first flow path configuration to measure an amount of the liquid sample passed through the first column and the second column, wherein the plurality of valves includes a second flow path configuration and a third flow path configuration.