Matrix Blanks and Standardization Solutions

A range of aqueous reference standards for process and instrument calibration and substances that closely match matrix component samples being analyzed; used to determine the absence of interference from matrix, reagents, and equipment.

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1,381 – 1,395 of 3,727 results

1,381

Hach Company Hach Nitrate Standard 25 mg/L NO3 (5.65 mg/L NO3-N), 500 mL (LCW828)

Hach nitrate standard solution at 25 mg/L NO3 (5.65 mg/L NO3-N) supplied in a 500 mL bottle for calibration and verification of online nitrate monitoring equipment and sensors.

Concentration: 25 mg/L NO3 (5.65 mg/L NO3-N).
Volume: 500 mL.
Intended use: standard solution for online nitrate determination and instrument calibration.
Certificates of analysis are available for download.
Safety data sheets are available; follow standard laboratory handling and storage procedures.

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1,382

Aqua Solutions Sulfide Standard (APHA) 1,000 ppm w/w (1 ml = 1 mg S-²) (1L)

Sulfide Standard (APHA) 1,000 ppm w/w (1 ml = 1 mg S-²) (1L)

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1,383

Aqua Solutions CHLORIDE STANDARD 1000 PPM as Cl (100MLWM)

CHLORIDE STANDARD 1000 PPM as Cl (100MLWM)

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1,384

Waters Corp WATERS CORPORATION UV Wavelength Accuracy Standard, Erbium Perchlorate, 10.0 g/L, 10 mL

This kit provides standards for assessing UV Detectors and verifying wavelength accuracy on HPLC TUV/PDA detectors, supporting performance maintenance with traceable, high-quality solutions.

Standards for UV detector assessment.
Verifies HPLC TUV/PDA detector wavelength accuracy.
Usable with cuvettes or 10 cc syringe.
Contains 10.0 g/L erbium perchlorate in water (±5% purity >=99.9%).
Volume: 10 mL. Formulation: Liquid.
Detection: UV. Separation: Reversed phase. System: LC.
Quantitative. Storage: Room temperature. Shipping: Ambient.
Shelf life: 36 months. Tolerance: 0.05.
Type: Calibration. Application: System performance, calibration.
Product type: Standards. Units per package: 1 pk.

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1,385

SPEX CERTIPREP LLC 3P STANDARD NITRITE 100PPM 250ML

(HPS by Zeptometrix) 100 ug/mL Nitrite from NaNO2 in water, 99.99+% (metals basis); Single Component IC Standard, 12 Month Expiry Date. Prepared from high-purity salts in 18-megaohm water, packaged in HDPE bottles.

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1,386

SCP Science CONOSTAN 1000PPM STNDRD CU 50G

NC3854917 CONOSTAN 1000PPM STNDRD CU 50G

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1,387

Crescent Chemical Co Inc VINCLOZOLIN SOLN 1ML

Vinclozolin Single Component Calibration Standard in Methanol CAS 50471-44-8 Size - 1mL Catalog Number - 8565M.10

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1,388

Medchemexpress LLC Iohexol (Standard) | 66108-95-0 | 99.2% | 50 MG

Iohexol (Standard) is the analytical standard for Iohexol, intended for research and analytical applications. It functions as a non-ionic, water-soluble contrast agent. Iohexol is utilized as a reference marker to determine the glomerular filtration rate (GFR) at the renal function level. Additionally, it can be employed for contrast in various imaging procedures including myelography, computerized tomography (cisternography, ventriculography), and MicroCT imaging.

Analytical standard for Iohexol
Non-ionic
Water-soluble contrast agent
Used as a reference marker for glomerular filtration rate (GFR)
Applicable in myelography, computerized tomography (cisternography, ventriculography), and MicroCT imaging
Suitable for qualitative, quantitative, and methodological research experiments in HPLC, GC, and MS

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1,389

SPEX CERTIPREP LLC 3P LITHIUM 1000UG/ML STD 100ML

(HPS by Zeptometrix) Li 1000ug/mL in 1% HNO3 Exp Date: 18 Months This standard is traceable to NIST and certified Guide 34 and 17025.

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1,390

Perkin Elmer US LLC Base Number (BN) Reference Material, 10 mg KOH/g, 50 g

Each Base Number standard is supplied with a comprehensive Certificate of Analysis that documents the quality and reliability.

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1,391

Perkin Elmer US LLC Base Number (BN) Reference Material, 6 mg KOH/g, 50 g

Each Base Number standard is supplied with a comprehensive Certificate of Analysis that documents the quality and reliability.

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1,392

Aqua Solutions Arsenic / Manganese 10 PPM

Composition: 3.035% Nitric Acid (7697-37-2), 0.00436% Manganese Acetate Tetrahydrate (6156-78-1), 0.000979% arsenic (7440-38-2), 96.9598% Water (7732-18-5)

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1,393

SCP Science CONOSTAN Standard S-21, 50 ppm, 200g

Oil based metal calibration standards for use with ICP, AA, rotrode, XRF, flame emission and other instruments. S-21: Ag, Al, B, Ba, Ca, Cd, Cr, Cu, Fe, Mg, Mn, Mo, Na, Ni, P, Pb, Si, Sn, Ti, V, Zn.