Skip to Main Content

A reagent is a chemical substance added to cause or function within a chemical reaction. Spex Certiprep is pleased to offer you more choices for your analytical laboratory reagent needs with some of the most commonly used solutions and formulations of solvents, acids, bases, buffers and mixtures. These products are manufactured using the highest-quality raw materials to ensure low-level impurities and consistent lot-to-lot quality.

These reagents are designed to work with any instrument and application, making Spex your reliable source for your chemical needs.

Search by Category

Mobile Phase Modifiers 

HPLC is a complex process that depends on each molecule’s ability to interact with the mobile phase that carries it through the column, the solid phase that fills the columns, as well as interactions between the different molecules in the sample.

Buffers

Spex offers high-quality buffer solutions with low levels of impurities and consistent lot-to-lot quality.

Carbon Black 

Reagents for ASTM D1510

Categories and filters

Filter / Sorting

Categories

Brand

Accreditations

Product Type

Regulatory Method

Instrument / Test

CAS #

Analyte / Component

12 Items found

Per Page:
Sort by:
  • Top rated
SKU: MPK-TFAA-5PK

Trifluoroacetic Acid Mobile Phase Modifier for HPLC/LCMS

Login to view pricing
  • Brand Spex
  • Matrix Neat
  • Raw Material >95% min; as available
  • Certification Single: Grav. &/or Volume w/Analytical Confirm
  • Top rated
SKU: MPK-FA-5PK

Formic Acid Mobile Phase Modifier for HPLC/LCMS

Login to view pricing
  • Brand Spex
  • Matrix Neat
  • Raw Material >95% min; as available
  • Certification Single: Grav. &/or Volume w/Analytical Confirm
  • Top rated
SKU: MPK-AA-5PK

Acetic Acid Mobile Phase Modifier for HPLC/LCMS

Login to view pricing
  • Brand Spex
  • Matrix Neat
  • Raw Material >95% min; as available
  • Certification Single: Grav. &/or Volume w/Analytical Confirm
SKU: IB-LA-B5

Lanthanum Ionization Buffer for FAAS in 1% HNO3 5% (250 mL)

Login to view pricing
  • Brand HPS
  • Matrix 1% HNO3
  • Raw Material Three 9s as available; no purification
  • Certification Single: Gravimetric
SKU: IB-LA-A5

Lanthanum Ionization Buffer for FAAS in 1% HCl 5% (250 mL)

Login to view pricing
  • Brand HPS
  • Matrix 1% HCl
  • Raw Material Three 9s as available; no purification
  • Certification Single: Gravimetric
SKU: IB-LA-A1

Lanthanum Ionization Buffer for FAAS in 1% HCl (250 mL)

Login to view pricing
  • Brand HPS
  • Matrix 1% HCl
  • Raw Material Three 9s as available; no purification
  • Certification Single: Gravimetric
SKU: IB-CS-B5

Cesium Ionization Buffer for FAAS in 1% HNO3 5% (250 mL)

Login to view pricing
  • Brand HPS
  • Matrix 1% HNO3
  • Raw Material Three 9s as available; no purification
  • Certification Single: Gravimetric
SKU: IB-CS-B1

Cesium Ionization Buffer for FAAS in 1% HNO3 (250 mL)

Login to view pricing
  • Brand HPS
  • Matrix 1% HNO3
  • Raw Material Three 9s as available; no purification
  • Certification Single: Gravimetric
  • Top rated
SKU: 183134

N Iodine 0.0473 (1 Gallon in Amber Glass Bottle)

Login to view pricing
  • Brand Spex
  • Matrix H2O
  • Concentration 0.0473 N
  • Certification Single: Wet Chemistry
  • Top rated
SKU: 182002

N Sodium Thiosulfate 0.0394 (1 Gallon in Cubitainer)

Login to view pricing
  • Brand Spex
  • Matrix H2O/0.5% Amyl Alcohol
  • Concentration 0.0394 N
  • Certification Single: Wet Chemistry
AlertAlertBrowse fileDownload fileFileImagePdfWordTextExcelPowerpointArchiveCsvAudioVideoSpinnerCalendarReturn arrowMinusVisibleInvisibleVisibleInvisibleConfigure