Qhov sib txawv tseem ceeb ntawm Whatman lim ntawv 1 thiab 2 yog tias Whatman lim ntawv 1 yog me ntsis qis dua li Whatman lim ntawv 2.
Kev lim dej yog txheej txheem ntawm kev sib cais cov khoom sib txawv hauv kev sib tov. Peb tuaj yeem siv cov ntawv lim rau qhov sib cais no. Peb siv nws los ua ib qho barrier uas yog perpendicular rau cov kua ntws los yog airflow. Yog li, cov ntawv lim dej no muaj txiaj ntsig zoo rau kev txheeb xyuas qhov zoo lossis ntau yam. Whatman lim ntawv yog tshwj xeeb rau kev soj ntsuam zoo. Muaj ntau qib ntawm Whatman lim ntawv xws li qib 1 lim ntawv, qib 2 lim ntawv, qib 3 lim ntawv thiab lwm yam. Cov feem ntau siv ntawm lawv yog Whatman lim ntawv 1. Txawm li cas los xij, nws yog me ntsis retentive piv rau Whatman lim ntawv 2.
Whatman Filter Paper 1 yog dab tsi?
Whatman lim ntawv 1 yog hom ntawv lim ntawv siv dav tshaj plaws, thiab nws muaj peev xwm khaws cia nruab nrab. Qhov ntawd txhais tau tias; piv rau qib 2 Whatman lim ntawv, daim ntawv qib 1 no yog me ntsis qis dua. Hom ntawv lim no muaj xws li lub voj voog lossis cov ntawv. Feem ntau, lub thickness yog nyob ib ncig ntawm 180 micrometers. Cov ntawv lim no tuaj yeem khaws cov khoom me me li 11 micrometers. Txawm li cas los xij, nws muaj qhov nruab nrab tuav thiab nruab nrab ntws tus nqi piv.
Feem ntau, peb siv cov ntawv lim dej no kom paub meej cov kua. Tsis tas li ntawd, muaj qee cov ntawv thov tshwj xeeb, suav nrog cov hauv qab no:
- Soil analysis
- Kev sib cais zoo ntawm cov hlau lead sulfate, calcium carbonate thiab calcium oxalate
- Ntaus roj raws li qhov sib ntxiv ntawm chromatographic reagents
- Sau cov plua plav atmospheric rau kev tsom xam
Whatman Filter Paper 2 yog dab tsi?
Whatman lim ntawv 2 yog qib retentive ntau ntawm cov ntawv lim. Nws yog retentive ntau dua li Whatman lim ntawv 1. Nws kuj muaj nyob rau hauv daim ntawv voj voog thiab daim ntawv. Txawm li cas los xij, cov voj voog thiab cov ntawv no tsawg dua piv rau qib 1 Whatman lim cov ntawv. Ntxiv mus, cov ntawv lim no tuaj yeem tuav txog 8 micrometer me me. Feem ntau, qhov tuab ntawm cov ntawv lim no yog li 190 micrometers.
Vim qhov pom tau zoo dua, lub sij hawm pom tau siab dua piv rau qib 1 lim ntawv. Qee daim ntawv thov tshwj xeeb uas peb siv cov ntawv lim dej no yog raws li hauv qab no:
- Kev tshuaj xyuas cov nroj tsuag loj hlob; los soj ntsuam cov as-ham tam sim no hauv av tov
- Kom saib xyuas cov pa paug hauv huab cua thiab av
Qhov txawv ntawm Whatman Filter Paper 1 thiab 2 yog dab tsi?
Whatman lim ntawv yog tshwj xeeb rau kev soj ntsuam zoo. Muaj ntau qib ntawm Whatman lim ntawv xws li qib 1 lim ntawv, qib 2 lim ntawv, qib 3 lim ntawv thiab lwm yam. Ntawm lawv, feem ntau siv cov ntawv lim dej yog Whatman lim ntawv 1. Qhov sib txawv tseem ceeb ntawm Whatman lim ntawv 1 thiab 2 yog tias Whatman lim ntawv 1 yog me ntsis qis dua li Whatman lim ntawv 2. Ntawd yog; Qhov loj me me uas Whatman lim ntawv 1 tuaj yeem tuav yog li 11 micrometer hais thaum lub Whatman lim ntawv 2 tuav txog 8 micrometer me me.
Cov hauv qab no qhia txog qhov sib txawv ntawm Whatman lim ntawv 1 thiab 2.
Summary – Whatman Filter Paper 1 vs 2
Whatman lim ntawv yog tshwj xeeb rau kev soj ntsuam zoo. Muaj ntau qib ntawm Whatman lim ntawv xws li qib 1 lim ntawv, qib 2 lim ntawv, qib 3 lim ntawv thiab lwm yam. Ntawm lawv, feem ntau siv cov ntawv lim dej yog Whatman lim ntawv 1. Qhov sib txawv tseem ceeb ntawm Whatman lim ntawv 1 thiab 2 yog tias Whatman lim ntawv 1 yog me ntsis qis dua li Whatman lim ntawv 2.
