Water and Wastewater Testing Supplies
Sigma Aldrich Fine Chemicals Biosciences Certified Vial Kit Low Ads
Supelcos new Low Adsorption (LA) vials are manufactured using a process that decreases the number of hydroxyl groups on the vials glass surface significantly reducing surface activity while improving analytical quantitation and minimizing pH shifts in the sample. This same process also removes unwanted surface metals such as sodium and boron that can contaminate samples and interfere with trace analysis. Unlike other methods used to decrease vial surface activity the elimination of surface activity in LA vials is integral to the manufacturing process and is not a chemical surface treatment.These vials and closures are designed engineered and manufactured for optimum performance in HPLC GC/MS and LC/MS applications. All of the parts of the vial system (vial cap and septum) can come into contact with the sample and are critical to the outcome of the analysis. We recommend using LA vials with MSQ polypropylene cap/PTfE silicone septa. This cap and septa combination was purposely d
Aqua Solutions Nitrogen Std. 500 ng/ul in p-Xylene (100ML)
Nitrogen Std. 500 ng/ul in p-Xylene (100ML)
Hach Company Hardness Quality Control Standard, High Range, 500 mL
Ready to use - no dilutions required. Mixed standard includes: Total Hardness: 1000 mg/L as CaCO₃, Calcium Hardness: 500 mg/L as CaCO₃. 500 mL Bottle
BLD PHARMATECH CO LIMITED Pd(dppf)Cl2, 72287-26-4, Purity: 98%, 10g
Pd(dppf)Cl2, 72287-26-4, Purity: 98%, 10g
Hach Company Fluoride Ionic Strength Adjustor (ISA), 3.78 L
Fluoride Total Ionic Strength Adjustor Buffer Solution (TISAB) for fluoride determinations by electrode methods. Eliminates interferences from aluminum and iron.
Hach Company Formate Reagent Solution, 100 mL
Reagent for determination of Total Iodine in Brine. 100 mL.bottle
Hach Company Sulfuric Acid Standard Solution, 0.035 N, 100 mL MDB
For alkalinity determination by drop-count titration test kit. 100 mL Marked Dropping Bottle