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Spexyte™ Micro pH Probe
Optimized for Nanodrop
Biological samples are usually in a very narrow pH range from 4.5 to 8.5, and many of them need to be provided in micro-volume (e.g., microliter). It is difficult to measure the pH values with small volumes accurately using the conventional pH meters due to the bulky sizes of the conventional pH electrodes. Spexyte™ Micro pH Probe is optimized to measure µL samples in the range of pH 4.5 ~8.5 using a NanoDrop™ or an equivalent device. The pH value is measured by reading the ratio of BCFL absorbances at 502 nm to 470 nm since the relationship between the pH value and the absorbance ratio (502/470nm) fits the Four-parameter logistic model well. The pH of a microvolume biological solution could be measured quickly and accurately in seconds with Spexyte™ Micro pH Probe. It provides a sensitive, easy and fast method to measure the pH values for micro-volume samples.
pH calibration curve
pH calibration curve
CatalogSize
Price
Quantity
212302x250 Tests
Price
 
Physical properties

Molecular weightN/A
SolventWater
Storage, safety and handling

H-phraseH303, H313, H333
Hazard symbolXN
Intended useResearch Use Only (RUO)
R-phraseR20, R21, R22
StorageFreeze (< -15 °C); Minimize light exposure
UNSPSC12352200
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Emailsales@aatbio.com
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ShippingStandard overnight for United States, inquire for international
Page updated on October 13, 2025