Yuav ua li cas rau khw muag khoom thiab siv cov ntsiab lus p tsis muaj kev daws teeb meem?
After preparing the buffer solution, it should be placed in a glass bottle or a polyethylene bottle (alkaline pH buffer solutions such as pH 9.18, pH 10.01, pH 12.46, etc. should be placed in polyethylene bottles). The bottle cap should be tightly closed and stored at low temperature (5-10 ℃) in the refrigerator. It can generally be used for about six months. If turbidity, mold or precipitation are found, it cannot be continued to be used. When using, prepare several 50mL polyethylene small bottles, pour the buffer solution from the large bottles into the small bottles, and let them stand at ambient temperature for 1-2 hours until the temperature is balanced before use. After use, it should not be poured into the large bottle to avoid contamination. The buffer solution in the bottle can be used for 2-3 days under environmental conditions of>10 degree. Feem ntau, cov PH 7.00, pH 6.86, thiab ph 14.00 kev daws teeb meem tuaj yeem siv rau lub sijhawm ntev dua. PH 9.18 thiab Ph 10.01 cov kev daws teeb meem yog nquag mus rau qhov ua kom haum rau cov pa roj carbon dioxide ntawm huab cua.
Lub hom phiaj ntawm kev daws teeb meem ntawm PH?
Calibrate lub ntsuas photion ua ntej ntsuas Ph.
Txhawm rau txheeb xyuas qhov tseeb ntawm lub ntsuas hluav taws xob ntev, tom qab ntsuas hluav taws xob photion rau hauv ph electrode rau hauv ph electrode rau hauv ph electrode rau hauv ph electrode rau hauv ph electrode cov txiaj ntsig zoo ib yam nrog tus nqi ntawm tus lej.
Puas yog nws yuav tsum tau recantibrate lub ntsuas ntsuas thaum lub sijhawm ntsuas qhov ntsuas ntshav. Tom qab ntsuas thiab siv lub ntsuas pha, drift lossis cov kev hloov pauv yuav tshwm sim. Yog li ntawd, ua ntej kev sim, ntxig rau cov electrode rau kev daws teeb meem qauv uas yog ze rau kev ntsuas ntsuas, thiab txiav txim siab seb kev rov ua dua tshiab yog tsim nyog raws li qhov yuam kev.
