Performance characteristics in the determination of soil‐water pH and soil‐SMP buffer pH using a flow‐through junction combination electrode

Autor: W. Shaw Reid, Norma Brenes, Michael N. Quigley
Rok vydání: 1997
Předmět:
Zdroj: Communications in Soil Science and Plant Analysis. 28:759-775
ISSN: 1532-2416
0010-3624
DOI: 10.1080/00103629709369828
Popis: A laboratory robot has been used to assess the performance of a commercially available flow‐through junction pH electrode. The electrode was tested for accuracy and precision in the determination of soil‐water pH (pHw) and the Shoemaker, McLean, and Pratt buffer solution pH (pHSMP). The significance of the pHSMP determination lies in subsequent calculations of soil lime requirement (LR). Response times and hysteresis effects were compared under different operating conditions.
Databáze: OpenAIRE