Reference Standards: Test Mixes

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LC Passivation Solution

Used to passivate your LC system before your first analysis if you:

(a) are analyzing phosphorylated compounds or other polar molecules known to chelate or interact with metal ions in your LC (e.g., glyphosate);

and also

(b) have stainless steel in your instrument flow path;

and/or also

(c) your LC column hardware is showing activity towards phosphorylated compounds or other polar molecules known to chelate.

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SPME Performance Test Mix (2 components)

  • Essential mix for establishing the performance of SPME fibers and SPME Arrows.
  • Verified composition and stability.

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Dimethyldichlorosilane (DMDCS) Deactivating Agent

  • Easy deactivation of liners and other glass surfaces.
  • Convenient—25 mL bottle deactivates 60 inlet liners.
  • Tested to ensure consistent quality and effectiveness.

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LC OQ Standards Kit

This kit contains one ampul of each of the following items (unless otherwise specified):
30012: LC OQ gradient standard, 1 mL
31053: LC OQ wavelength accuracy standard, 5 mL
31068: LC OQ linearity kit, six 1 mL ampuls (contents detailed below)*

*Components of the LC linearity kit (cat.# 31068) are not available for individual sale.

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Silylation Derivatization Reagents

  • Replace active hydrogen, reducing polarity and making the compounds more volatile.
  • Increase stability of derivatives.

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Alkylation Derivatization Reagents

  • Add alkyl groups to functional hydrogens (H).
  • Decrease polarity on compounds containing acidic hydrogens, i.e., phenols, carboxylic acids.
  • Form an ester.

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Acylation Derivatization Reagents

  • Most commonly used for electron capture detection.
  • React with alcohols, amines, and phenols.
  • Frequently used for drugs of abuse confirmation.

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LC Performance Test Mix (5 components)

  • Highly effective for characterizing LC column parameters.
  • Simple, easy, reliable approach to quality control (QC) evaluations or column classification.
  • Monitor column performance over time.

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Carbohydrate LC Performance Check Mix (5 components)

  • For simple sugar analysis by LC with refractive index/light scattering detection.
  • Use with a silica column with amino functionality, as recommended by AOAC International.
  • Use as a calibration standard for AACC Method 80-04.
  • Offered dry for enhanced stability.

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LC OQ Linearity Test Mix Kit

Contains 1 mL each of these mixtures.
31804: Caffeine (caffeine at 5 µg/mL in water)
31803: Caffeine (caffeine at 25 µg/mL in water)
31802: Caffeine (caffeine at 125 µg/mL in water)
31801: Caffeine (caffeine at 250 µg/mL in water)
31800: Caffeine (caffeine at 500 µg/mL in water)

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LC Reversed Phase Test Mix #1 (4 components)

Routine analysis using this mix can assist in determining the need to perform column and/or system maintenance.

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LC Normal Phase Test Mix #1 (4 components)

Routine analysis using this mix can assist in determining the need to perform column and/or system maintenance.

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Amine Column Test Mix (GC) (8 components)

For Stabilwax-DB, Rtx-5 Amine, Rtx-35 Amine, and Rtx-Volatile Amine columns.

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Grob Test Mix (Capillary GC) (12 components)

For use with temperature-programmed conditions.

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