Accuracy Matters

Many chemical and biological reactions in groundwater depend directly or indirectly on the amount of available oxygen. Dissolved oxygen (DO) may be monitored in groundwater samples to examine the water quality. A change in DO value can indicate pollution by microbiological contaminants, organic matter or reduced mineral phases.

The Orion RDO sensor utilizes luminescence technology to detect oxygen, in which the signal response is inversely related to the oxygen content, resulting in improved accuracy in low-level samples.
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Take the challenge,
see if you’re right...

Controlled Reaction

1. Use a differential pH electrode which acts as a solution ground.
2. Try grounding the tank.
3. Ensure that the pH controller has the proper setting for the electrode being used.
4. Try moving the equipment to a different area.

Large and In Charge

For 80 years, the Van de Graaff electrostatic generator has created static electricity. Read a history of this significant innovation, including how to build your own with three central components: a terminal, belt and pulley system, and a motor.
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• Provide accurate sodium, calcium, potassium, and lithium determinations
• Linearize your sodium readings and output to a comptuer with the Digital Interface/Linearizer module
• The technique of choice for Na, K, and Ca measurement in the food and beverage, chemical, oil, paper, and pharmaceutical industries
• Two-channel and four-channel versions are available along with automatic dilutor and autosampler for long sample runs

• Ultra-clear safety coating helps stop and control spills in the event of glassware breakage
• Ideal for chemical storage, transportation, and handling of hazardous chemicals, harmful biologicals, and acids
• Feature wide opening for easy pouring and a linerless blue polypropylene cap and pouring ring
• Permanent white graduations and large white marking area
• Autoclavable

• High-tech sieve shaker is designed to meet critical particle analysis demands
• Digital timer controls shaker from 0 to 99 minutes
• Select from coarse or fine analysis control settings
• Holds 9 full-height or 15 half-height sieves when used with a bottom pan

• The world of microphotography at your fingertips—just plug into a USB port and you're ready to go!
• Active Pixel technology produces sharp images and accurate color reproduction
• Six LEDs with adjustable brightness ensure proper illumination
• Includes software for image/video capture and measurement