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Choosing the right parts for your application is critical. Below you will find a table comparing many common parts to help you determine just what you need.

Cables

In any laboratory, having key lab supplies is almost as important as having the major equipment. Choosing a reputable supplier of these necessary supplies is as important as having quality laboratory supplies when you need them. WPI wants to be your partner in early drug discovery, and we stock a wide variety of lab supplies, many of which can ship the same business day. Having a variety of lab supplies ready to ship makes us a dependable research partner. Here are some of the popular supplies that we keep on hand to meet your needs for your upcoming experiment...more

Trusted Partner for Reliable Measurements

WPI is dedicated to being your preferred OEM supplier for optical fiber products by offering the following:

• Quality Products and Expert Service – After over 50 years in business, we’ve learned that it takes more to be your partner than just great quality and fair prices. We have implemented measures such as our ISO-9001:2015 certification throughout our home office and production facility to improve our efficiency and ensure quality. We also have invested in six sigma certifications with continuing effort to improve processes within the organization.
• Personal Service – A dedicated OEM account manager and a seasoned optical engineering team with over 20 years of technical design experience make all the difference for our customers.
• Cost Effective Solutions – Quality optical fiber products...more

WPI offers custom fiber optic cables and assemblies. This video show how to create a custom ordering code to designate what you need. If you have any questions about ordering Fiber Optic Cables and Assemblies for your laboratory or application, just give us a call (866-606-1974) or email us at [email protected].

More Info

Measuring CDOM with a Fiber Optic Liquid Waveguide Capillary Cell

One's imagination is the limit with practical uses of WPI's Liquid Wavelength Capillary Cells(LWCC), also referred to in the fiber optic spectroscopy community as a Long Pathlength Flow Cell. This fiber optic sampling accessory for absorbance measurements combines increased optical pathlengths with small sample volumes making them ideal for water analysis such as CDOM.

Two optical fibers couple to this sampling accessory one to send light to the sample cell and the second to send light to a spectrometer.  The length of the fiber optic cable can vary allowing investigators to either spot test CDOM in the lab from collected water samples or continuously monitor CDOM of a body of water under investigation with this sampling accessory coupled to a fiber optic spectrometer and...more

Not all fibers are created equal. When your research is on the line, the choice is clear. Because,WPI optical fibers are qualified for your next project.

Let’s take a look at how to set up a Digital Rat/Mouse, Neonatal Rat Stereotaxic frame. In a few steps you will be up and running...more

The purpose of this article is to describe a new cleaning procedure for thoroughly cleaning WPI flowcells, including Liquid Waveguide Capillary Cells (LWCCs), UltraPath flowcells and optical cuvettes.

The image (right) shows a 3000 series LWCC with a MiniStar pump and the LWCC injection system placed on top of it.

Preparation of Chemicals

All chemical reagents should be of at least ACS-Grade, preferably HPLC-Grade. This procedure involves the use of caustic and flammable reagents. Consult the manufacturer’s MSDS for necessary safety precautions.

Cleaning Solution #1:

0.5M Potassium Hydroxide in 100% Ethanol (e.g.: 7 g KOH in 250mL EtOH). After thoroughly mixing, filter the solution through a 20µm pore size filter.

Cleaning Solution #2:

100% Methanol, HPLC grade

Cleaning Solution #3:

Ultrapure water, Type I per ASTM D1193-99 or equivalent...more

What is REMS?

The REMS AutoSampler automates measurements of electrical resistance of transepithelial, transendothelial or Caco-2 cell membranes being grown to confluence on microporous filters of high throughput screening (HTS) 24- and 96-well microplates. It is a PC-controlled, tissue resistance measurement system that offers reproducibility, accuracy and flexibility for this kind of measurement. The ability of the REMS AutoSampler to precisely locate the electrode results in highly reproducible TEER measurements. TEER measurements are stored in the computer as the electrode moves from one well to the next. The Windows-based software provides user-friendly features to acquire, display and store the tissue resistance measurements.

Automated...more

Abstract

Concentrations of DNA in solution (31µg/mL and 561µg/mL) were measured with a spectrometer and UV/Vis light source in a cuvette. A 2mm pathlength cuvette does not require a pre-measurement dilution within this concentration range, thus a potential source of error was eliminated. Although a 2mm cuvette has a total internal volume of 0.7mL...more

WPI offers a variety of precious metals and wire. The table below compares the specifications of the various wires. The following hints are offered to help you understand the part number codes and choose the wire you need:

• Micro coaxial cables (MAXxxxx) are ideal for microelectrode fabrication and construction of similar research tools. The dual shielding eliminates electrical interference caused by radio frequencies (RF), electrostatic and microphonics (e.g., bending and vibration). Available with single or dual (twin) conductors.
• Thermocouple wire is for tem­per­a­ture mon­i­tor­ing. TCK3050 has a chromel/alumel pair, for use in inert or oxidizing atmosphere at 1500-1800 °F.
• Teflon-coated stainless steel (type 304) wire (SSTxxxx) is available in 25-ft and 50-ft lengths. The Teflon coating is 4µm thick.
• Carbon wire (C3005) is a single 30µm...more