Colloidal Gold pH Meter

The colloidal gold pH meter operates on the principle that the surface charge of colloidal gold particles changes with pH, leading to color or spectral shifts, and determines the acidity or alkalinity of a solution through optical detection. It is used for rapid pH testing of liquid samples and is commonly applied in biological research, environmental monitoring, and simple analytical scenarios.
Selection
When selecting a colloidal gold pH meter, consider whether the measurement range covers the pH of the samples, if the accuracy meets the requirements, the ease of operation, the stability of the equipment, and maintenance costs. Based on the actual application scenarios, such as laboratory or field testing, evaluate the response time and compatibility.

Terms

Instruments

The large sink design is used to reduce buoyancy errors, and Brazilian fire gold with coating thickness > 30μm can be tested with a density accuracy of 0.0001g/cm ³, which supports the analysis of the mixing ratio of various precious metals.

$ 503.00

The large sink design is used to reduce buoyancy error, the density accuracy is 0.001g/cm ³, and the Brazilian fire gold with coating thickness > 30μm can be tested, and the mixing ratio of various precious metals can be measured.

$ 462.00

Density accuracy of 0.001g/cm ³, maximum weighing 310g, built-in density reference can be customized settings, support solid liquid powder and Water Absorbency sample testing, equipped with level indicator and overload alarm function.

$ 525.00

Measurement accuracy of 0.001g/cm ³, support temperature compensation and mixed specific gravity measurement, can cycle display K number and purity%, with over-limit prompt function, operation only needs two steps.

$ 338.00

Measurement accuracy of +/- 0.05pH, resolution of 0.01pH, pH and mV can be detected at the same time, built-in battery supports 10-15 hours of battery life, easy to operate, stable and reliable.

$ 127.00

Measurement range 5-600g, density accuracy 0.001g/cm ³, with temperature compensation and mixing ratio measurement function, without leaving traces after testing.

$ 378.00

Measurement principle of hanging water method, density accuracy of 0.001g/cm ³, support one key zero and temperature compensation function, can cycle display K number and purity percentage, and have mixed specific gravity determination and over-limit prompt function.

$ 441.00

Measurement accuracy of 0.01 pH, support automatic temperature compensation and pH/mV/temperature Multi-ParaMeter measurement, simple, stable and reliable operation.

$ 175.00

Measurement accuracy of +/- 0.02pH, resolution of 0.01pH, support three-point calibrated, built-in Glass electRode, small size weighing only 88g, suitable for 0-50 ℃ environment, easy to quickly detect on site.

$ 104.00

Measurement range 0.00-14 pH, accuracy +/- 0.05pH, with temperature compensation function, portable design for easy field use, large screen LCD display is clear and intuitive.

$ 114.00

Measurement range 0.00-14 pH, accuracy +/- 0.05pH, with automatic temperature compensation function, portable design for on-site fast detection, repeatability error only +/- 0.03.

$ 105.00

Measurement accuracy of +/- 0.1pH with three-point calibrating technology, PH and temperature can be measured simultaneously, compact and portable, suitable for outdoor use.

$ 107.00

Using planar pH ElectRode design, Measurement accuracy of 0.01pH, Support 1-3 point Automatic calibration, with automatic temperature compensation and end point locking function, full waterproof structure to ensure harsh environment use.

$ 178.00

Glass shell with high strength can withstand temperature up to 80 ℃, can be filled with internal reference solution to prolong service life, and is suitable for the measurement of complex samples such as colloids.

$ 428.00

Glass shell and sensitive membrane, pH Measurement range 0-14pH, Temperature range 5-60 ℃, suitable for routine sample measurement, liquid boundary is ceramic core single salt bridge, reference type Ag/AgCl.

$ 98.00

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