pH Paper and other Test Strips
Single-use test materials used to rapidly and semi-qualitatively determine the acidity or alkalinity of liquids or to measure another parameter or substance; may include tests for starch, chlorine, and molybdenum; usually via the use of color-based reactions.
pH Papers, pH strips, pH sticks, and pH test kits are used in laboratory, industrial, and educational environments to qualitatively assess pH levels or monitor acid-base titrations in a range of sample types.pH Buffer reference standards are used for the accurate calibration of pH meters and monitors for far more precise and quantitative pH measurement.
pH Test papers are supplied either as rolls, tear-off strips, or sticks. They are impregnated with indicator dyes that change color at a specific pH. In some products, indicator dyes are covalently linked to cellulose fibers to avoid bleed-out (leaching) and contamination of the test sample.
Some pH papers indicate simple acid or base conditions with a single red-to-blue color change (also called litmus papers). Universal pH papers and strips contain a combination of indicators that cover a range of pH values up to and including 0 to 14 in a single test. The observed color change is checked against a comparison chart supplied with the papers.
Alternatively, for metered assessments of pH, standard or reference pH buffers are used to calibrate pH meters and other electrochemical sensors.
Standard Buffer Characteristics:
• Typically supplied at fixed values of pH 4.01, pH 7.00, and pH 10.01
• May be color-coded for easy and quick identification
• Certified to their nominal pH and accuracy at a specified temperature (typically 20°C)
• Supplied as ready-to-use solutions or concentrates
• Contain antifungals for extended shelf life
Cole-Parmer Oakton pH Indicator Strips, 0 to 14, 100/pk
Convenient flip-top vials containing 100 strips include color comparator chart. Read results immediately after exposing test area to the solution. Strips measure 2-3/4"L x 1/4"W (7 x 2 cm).
DYNAMISM INC E3D DiamondBack Complete Hotend - .4 mm
Drop-in replacement complete hotend for Bambu X1COfficially Licensed Bambu product
Research Products International Corp ClusterTubes, Non-RKed, 8 Tube Strip, 125 Strips
ClusterTubes are ideal for dilution, mixing, harvesting, culture assays, screening and storage applications. Rack systems are also suitable as a reaction vessel in robotic workstations or as a long-term storage vessel in sample library. Tube are available as individual tubes, strips of 8 tubes or 12 tubes. Racks feature bold, black alphanumeric indexing and are made from autoclavable virgin polyproplyene; caps are polyethylene material; and racked tubes are supplied with clear lid. Tube volume is 1.2ml.
DNase, RNase, DNA, PCR inhibitor & pyrogen free
Ideal for Automation, HTS
SBS footprint; 8 x 12 format
Fisher Chemical™ pH Indicator Solutions
For use in a variety of pH test sets
Fisherbrand™ Alkacid™ Full-Range pH Kit
pH accuracy to ±0.25
Fisher Chemical™ Universal pH Indicator System
For pH determinations between 4.0 to 10.0
MilliporeSigma™ colorpHast™ pH Strips
Accurate results are achieved even in weakly buffered, turbid and colored samples. Each pack contains 100 strips.
MilliporeSigma™ MQuant™ Nitrate Test Method
5000 individually sealed colorimetric nitrate test strips