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Matrix Oils

Standards for matrix oil identification

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Identifying the correct matrix oil from among the wide range of available industrial hydrocarbons and petrochemicals can be difficult. Ensuring the matrix oil is correct is a critical part of any petrochemical or environmental testing.

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Matrix Modifiers for Graphite Furnace AA

Agilent offers quality NIST traceable Matrix Modifiers for Graphite Furnance AA, with a selection of standard mixes offering accurate, reliable calibrations at a great value.

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Chemical modifiers are used in graphite furnace atomic absorption spectrometry (GFAAS) to change the thermochemical behavior of both the analyte and the sample matrix. Modifiers may be used both to stabilize the analyte, thus allowing higher ash temperatures, and to move the atomic signal away from the background signal, allowing more accurate background correction. Chemical interferences can also be reduced by using higher atomization temperatures.|Using the right modifier, or mix of modifiers, can simplify an analytical method and improve accuracy, precision, sensitivity, and quantification limits. Agilent offers a comprehensive range of modifiers for use with graphite furnace atomic absorption spectrometry. And with the assurance of NIST traceability, Agilent's selection of standard mixes offers accurate, reliable calibrations at great value.

High Matrix Introduction (HMI) Supplies for ICP-MS

ICP-MS parts and supplies for HMI and UHMI aerosol gas dilution

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The UHMI and HMI supplies and kits give you the power of aerosol dilution. Achieve the sensitivity you need for ultra-trace analysis with the flexibility you demand for every application.|An additional flow of argon gas is introduced between the spray chamber outlet and plasma torch inlet, mixing with and diluting the sample aerosol. MassHunter software controls the dilution range and optimizes the plasma conditions and lens tuning to suit your needs.

ICP-MS High Matrix Introduction (HMI) Accessory

Increases ICP-MS matrix tolerance, allowing % level dissolved solids samples to be run routinely

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Agilent High Matrix Introduction (HMI) technology, supplied as standard on the 7800 ICP-MS, uses an innovative, computer-controlled, and reproducible “aerosol dilution” approach that reduces the aerosol loading on the plasma. This allows the plasma to tolerate much higher total dissolved solids (TDS) levels than the 0.1 to 0.2% that is typical for ICP-MS.|HMI “dilutes” the sample aerosol using clean, dry argon gas, completely eliminating the disadvantages of liquid dilution (time, reagent costs, risk of contamination, dilution errors).

ICP-MS Ultra High Matrix Introduction (UHMI)

Uses clean argon to dilute high-matrix samples, eliminating the problems of liquid dilution

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Agilent Ultra High Matrix Introduction (UHMI) technology uses an innovative, computer-controlled, calibrated, and reproducible aerosol dilution approach to extend the matrix tolerance of Agilent ICP-MS systems to percent levels of dissolved solids – far beyond the normal limit for ICP-MS. |UHMI, included with the 7850, 7900 and 8900 ICP-MS systems, is a sample dilution technique, but because it uses clean argon as the diluent, it completely eliminates the potential problems of liquid dilution, including increased risk of sample contamination, leaks in tubing connections, dilution errors, waste disposal costs, and sample prep time.

Community Search Results

Removing Cell membrane matrix from cell plate before adding PBMCs? Removing Cell membrane matrix from cell plate before adding PBMCs?

We noticed the other day that when loading the cells into the 96 well cell plate, some of us remove the cell membrane matrix (in our case, Geltrex) before adding the cells while others don't. Our error bars between cells are smaller when we don't remove the extra Geltrex and there is no difference in the raw data either.

Issues With Potassium Detection in ICP-OES with Matrixed Samples (K/Na/Li) Issues With Potassium Detection in ICP-OES with Matrixed Samples (K/Na/Li)

Howdy, I am newer to the more technical side of ICP-OES so please give me some grace as I explain my issues Currently my system of interest involves quantification of K, Na, and Li using ICP-OES (ICP 5800) and I have been experiencing some interesting results when I attempt to quantify values of potassium in my samples when sodium and/or lithium is present in the same solution. I have been seeing that the calculated concentrations of potassium when in solution by itself remain accurate to the predicted concentration from the solution prep phase, but when I spike the same solution with a known concentration of Lithium it seems to inflate the K-intensity and thus calculated concentration. For example, I prepared a 5 ppm K solution, then made solutions of 5 ppm K with 0.1, 1, and 5 ppm Li in them and the intensities for K only became greater with the increasing concentration of Li. For 0.1 ppm Li, concentration of K was approximately 5.0 ppm, for 1 ppm Li the K concentration was 5.5 ppm, and for equimolar/5 ppm Li the concentration was 6.6 ppm K. For samples where the Li to K concentration ratio is 100 to 1 the estimated K concentration may end up being anywhere between 1.4x to 2x the concentration of the potassium predicted. Sodium also seems to interfere with the observed intensity of K wavelengths but not as severely as Li will. Is there any literature or other data from others to show this is a known issue in ICP-OES or could this be coming from some other source ? If anyone requires further information I may have not included please let me know and I will provide what information I can. Thank you

Switching from Aqueous to Organic Matrix Switching from Aqueous to Organic Matrix

Hello, I’m an ICP-OES 5800 user currently analyzing water-soluble samples with a 2% nitric acid matrix. I found on your website that when switching to an organic matrix, it’s recommended to clean the sample flow path using IPA solvent.

Using FACT for matrix correction Using FACT for matrix correction

We are currently using the ‘dilute and shoot’ style organic sample introduction method for our 5900 SVDV and utilize FACT correction for some of our analytes. When selecting the entries for FACT correction, there is a ‘matrix’ field. My questions regarding this are: 1. Can this be used to eliminate organic matrix interference while running a kerosene/xylene diluent with 10% 75cSt hydrocarbon oil?

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