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
Hach Company Free & Total Chlorine Test Strips, 0-10 mg/L, Individually Wrapped, 250/pk
The most widely used disinfectant for drinking water, chlorine is also important for sanitizing swimming pools, cooling towers, other industrial equipment, and municipal wastewater. Its measurement and control are vital for both safety and economic reasons. Chlorine exists in water as "free" chlorine (hypochlorite) or "combined" chlorine (chloramines). The total chlorine test detects both forms. With Hach Water Quality Test Strips, technicians in the field can test many samples in only a few minutes, and make immediate evaluations on-site. No measuring, set-up, clean-up, or chemical handling are necessary. Hach test strips are also used in laboratories all over the world for pre-test screening-to detect the presence of materials that might interfere with lab testing. Strips are individually wrapped for maximum portability and stability. Contains 250 tests.*This product has not been evaluated to test for chlorine and chloramines in medical applications in the United States.
Hach Company Chlorine (Total) Test Kit, Model CN-65
The most widely used disinfectant for drinking water, chlorine is also important for sanitizing swimming pools, cooling towers, other industrial equipment, and in the treatment of municipal wastewater. Its measurement and control are vital for both safety and economic reasons.*This product has not been evaluated to test for chlorine and chloramines in medical applications in the United States.
Electron Microscopy Sciences Pehanon pH Indicator Strips 6.0-8.1, 0.5 gradations
pH indicator papers where the indicator and color scale are combined on a single strip. They permit a fast, convenient, and accurate pH determination since it is not necessity to compare color against a scale. This presentation also permits the pH measurement of colored solutions and suspensions, since the color of the test solution acts on the comparison scale in the same manner as on the indicator field.
The indicator zone (unprinted field) is in the center of the strip, the comparison fields above and below same. The strip is submerged in the solution for three seconds so that all colors zone are wetted and the center field changes color according to the pH value of the solution. It is then compared to the color filed bearing the corresponding pH value imprint. An invisible hydrophobic barrier just above the top color field prevents capillary action of the test solution.
pH: 6.0-8.1
Gradations: 0.5
Ecolab Klercide Sporicidal Active Chlorine, Sterile Sodium Hypochlorite Solution, 6 Bottles x 32 oz
The Ecolab Klercide Sporicidal Active Chlorine is a sterile, ready-to-use sodium hypochlorite solution designed for critical cleanroom environments. It effectively combats a range of microbial contaminants, including bacterial spores and viruses, without additional activators. Its unique SteriShield Delivery System minimizes operator risks, making it superior to standard disinfectants. The product ensures high purity and sterility, meeting stringent cleanroom standards.
Sigma Aldrich Fine Chemicals Biosciences Nylon Net filter 10.0 um p
Nylon filters are compatible with a broad range of solvents. Two types are available 1) Nylon Membrane filters with pore sizes ranging from 0.20 to 1.2 181m and 2) Woven Net filters with mesh openings ranging from 5 to 180 181m. Our 5 181m Nylon Woven Net filter (NY054700) is commonly used in the automotive industry for cleanliness analysis. features Benefits.Wide range of pore sizes available .Resistant to aggressive solvents ApplicationsParticle Removal and Clarification Solvent filtration Particle Analysis Paint Monitoring Automotive Cleanliness Analysis
Innovative Research Inc Mnky-Cyno Ttl Plsmngn Kit
Monkey (Cynomolgus) Total Plasminogen ELISA Kit - Monkey (Cynomolgus) Total Plasminogen ELISA Kit from Innovative Research is for the quantitative determination of total plasminogen antigen in cyno monkey plasma, serum, or cell culture media. Strip well format. Reagents for up to 96 tests. Cyno monkey plasminogen will bind to the affinity purified capture antibody coated on the microtiter plate. Plasminogen, plasmin, and plasmin in complex with antiplasmin will react with the antibody on the plate. After appropriate washing steps, biotin labeled polyclonal anti-cyno plasminogen primary antibody binds to the captured protein. Excess antibody is washed away and bound polyclonal antibody is then reacted with peroxidase conjugated streptavidin. Following an additional washing step, TMB substrate is used for color development at 450nm.
Hach Company Chlorine (Total) Test Kit, Model CN-21P
Chlorine Test Kits are manufactured by Hach Company to ensure compliance with stringent quality control standards. Using the Drop Count Titration method, the CN-21P Chlorine Test Kit is used to determine high concentrations of chlorine in sanitizing applications. 10-200 mg/L; contains 100 tests.*This product has not been evaluated to test for chlorine and chloramines in medical applications in the United States.
Abcam Reticulum Stain Kit (Modified Gomori's)
Reticulum Stain Kit (Modified Gomori's)
The product is subject to the following: Abcam Restricted Use Statement
Hach Company DPD Total Chlorine Reagent Powder Pillows, 25 mL, pk/100
For total chlorine determination by the DPD method. USEPA accepted for reporting drinking and wastewater analysis using Hach Method 8167. Ranges: Low Range: up to - 2.00 mg/L; Mid Range: 0.05-4.00 mg/L; High Range: 0.1-10.0 mg/L. Sample Size: Low Range - 25 mL; Mid Range: 10 mL; High Range: 5 mL. Pack of 100 powder pillows.Boric Acid free! *This product has not been evaluated to test for chlorine and chloramines in medical applications in the United States.
Sigma Aldrich Fine Chemicals Biosciences ExpandTM Long Range dNTPac
The Expand Long Range dNTPack is the second-generation version of the Expand Long Template PCR System optimized and designed to consistently amplify PCR products from 5kb up to 25kb from genomic DNA (or up to 40kb from lambda DNA templates). The supplied buffer can be used for all PCR product sizes. In addition a buffer without MgCl2 and separate vials of MgCl2 and DMSO are included if optimization is needed. Expand Long Range dNTPack contains a special enzyme mix that consists of thermostable Taq DNA Polymerase and a thermostable DNA polymerase with proofreading activity. This powerful polymerase mixture produces a high yield of PCR product. Due to the inherent 3-5 exonuclease activity of the proofreading polymerase Expand Long Range dNTPack copies DNA three times more accurately than Taq DNA Polymerase.
CTL Scientific Supply Corp QUANTOFIX SULFITE
QUANTOFIX SULFITE 100 strips/pack Test strips for the semi-quantitative determination of sulfite in solutions. Gradation of scale: 0-10-25-50-100-250-500-1000 ppm SO32-
Hach Company AT1000 Bundle-Total Chlorine
AP0007 AT1122 - Free Total Chlorine-Chlorine Dioxide-Sulfite Application PackKit includes 1 ea AT1122 97 - Titralab AT1000-1 syringe-2 pumps1 ea 199953 - PAO Standard Solution-0 00564N 1000mL1 ea 1490953 - Acetate Buffer Solution-pH 4 0-1L1 ea 2834100 - KI Bulk Dispenser1 ea 2333353 - Iodine Standard Solution-0 0282N-1000mL1 ea 1426810 - Chlorine-50-75MG/L PK/16 mL
Hach Company pH Test Strip, 7.5-14 pH units, 100 tests
Most natural waters range from pH 4 to pH 9, but commonly are above pH 7 because of carbonates and bicarbonates (alkalinity). The pH of water used in industry, boiler feed water, and swimming pools usually is kept within a narrow range.