Ka'ida da Aikin Masu Daidaita Zafin Jiki don Mita pH da Mita Mai Gudarwa

II. Abubuwan da ake la'akari da su wajen aiki don auna pH da kwararar wutar lantarki tare da diyya ga zafin jiki

1. Jagorori don Amfani da Masu Daidaita Zafin Ma'aunin pH
Tunda siginar mV da aka auna ba ta bambanta da zafin jiki ba, aikin mai daidaita zafin jiki shine gyara gangara (ma'aunin juyawa K) na amsawar lantarki don daidaita yanayin zafin jiki na yanzu. Saboda haka, yana da mahimmanci a tabbatar da cewa zafin ruwan da aka yi amfani da shi yayin daidaitawa ya yi daidai da na samfurin da ake aunawa, ko kuma an yi amfani da daidaitaccen diyya na zafin jiki. Rashin yin hakan na iya haifar da kurakurai na tsari, musamman lokacin auna samfuran nesa da zafin jiki na daidaitawa.

2. Jagorori don Amfani da Masu Daidaita Zafin Zafin Ma'aunin Watsawa
Ma'aunin gyaran zafin jiki (β) yana taka muhimmiyar rawa wajen canza yanayin da aka auna zuwa yanayin zafin da aka yi amfani da shi. Magani daban-daban suna nuna ƙimar β daban-daban - misali, ruwan halitta yawanci yana da β na kimanin 2.0–2.5 %/°C, yayin da acid mai ƙarfi ko tushe na iya bambanta sosai. Kayan aiki masu daidaitaccen ma'aunin gyara (misali, 2.0 %/°C) na iya haifar da kurakurai yayin auna mafita marasa daidaito. Don aikace-aikacen da suka dace, idan ba za a iya daidaita ma'aunin da aka gina a ciki don daidaita ainihin β na maganin ba, ana ba da shawarar a kashe aikin diyya na zafin jiki. Madadin haka, auna zafin maganin daidai kuma a yi gyaran da hannu, ko a kula da samfurin a daidai 25 °C yayin aunawa don kawar da buƙatar diyya.

III. Hanyoyin Gano Matsalolin da ke Cikin Masu Daidaita Zafin Jiki Cikin Sauri

1. Hanyar Dubawa da Sauri don Masu Daidaita Zafin Ma'aunin pH
Da farko, daidaita ma'aunin pH ta amfani da mafita guda biyu na ma'aunin buffer don kafa madaidaicin gangara. Sannan, auna mafita ta uku da aka tabbatar a ƙarƙashin yanayin da aka biya (tare da diyya ta zafin jiki). Kwatanta karatun da aka samu da ƙimar pH da ake tsammani a ainihin zafin maganin, kamar yadda aka ƙayyade a cikin "Dokar Tabbatarwa don Mita pH." Idan karkacewar ta wuce matsakaicin kuskuren da aka yarda da shi don ajin daidaiton kayan aikin, mai daidaita zafin jiki na iya yin aiki ba daidai ba kuma yana buƙatar duba ƙwararru.

2. Hanyar Dubawa da Sauri don Masu Daidaita Zafin Ma'aunin Watsawa
Auna ƙarfin lantarki da zafin jiki na mafita mai karko ta amfani da na'urar auna zafin jiki tare da kunna diyya ta zafin jiki. Yi rikodin ƙimar ƙarfin lantarki da aka nuna. Daga nan, kashe mai daidaita zafin jiki kuma yi rikodin ƙarfin lantarki mai ƙarfi a ainihin zafin jiki. Ta amfani da ma'aunin zafin jiki da aka sani na maganin, ƙididdige ƙarfin lantarki da ake tsammani a zafin jiki na tunani (25 °C). Kwatanta ƙimar da aka ƙididdige tare da karatun kayan aikin da aka biya. Babban rashin daidaituwa yana nuna yiwuwar matsala a cikin algorithm ko firikwensin diyya na zafin jiki, wanda ke buƙatar ƙarin tabbaci ta hanyar dakin gwaje-gwajen metrology mai takardar shaida.

A ƙarshe, diyya ta zafin jiki tana aiki a cikin mita pH da mitar sarrafawa suna da manufofi daban-daban. A cikin mita pH, diyya tana daidaita amsawar electrode don nuna tasirin zafin jiki na ainihin lokaci bisa ga lissafin Nernst. A cikin mitar sarrafawa, diyya tana daidaita karatu zuwa zafin tunani don ba da damar kwatanta samfurin. Rikitar waɗannan hanyoyin na iya haifar da fassarori marasa kyau da kuma lalacewar ingancin bayanai. Cikakken fahimtar ƙa'idodin su yana tabbatar da daidaito da inganci. Bugu da ƙari, hanyoyin ganewar asali da aka bayyana a sama suna ba masu amfani damar yin kimantawa na farko na aikin diyya. Idan an gano wani rashin daidaituwa, ana ba da shawarar ƙaddamar da kayan aikin nan take don tabbatar da daidaiton metrology.