Uburyo bwo gupima ibintu byahagaritswe: uburyo bwa gravimetric

1. Uburyo bwo gupima ibintu byahagaritswe: uburyo bwa gravimetric
2. Gupima ihame ryuburyo
Shungura icyitegererezo cyamazi hamwe na 0.45μm ya filteri ya membrane, ubirekere kumashanyarazi hanyuma uyumishe kuri 103-105 ° C kugeza uburemere buhoraho, hanyuma ubone ibintu byahagaritswe nyuma yo gukama kuri 103-105 ° C.
3. Kwitegura mbere yo kugerageza
3.1
3.2 Impirimbanyi zisesenguye
3.3. Kuma
3.4. Akayunguruzo kayunguruzo gafite ubunini bwa 0.45 mm na diameter ya 45-60 mm.
3.5, ikirahure
3.6. Pompe
3.7 Gupima icupa rifite diameter y'imbere ya mm 30-50
3.8, amenyo atagira amenyo
3.9, amazi yatoboye cyangwa amazi yubuziranenge bungana
4. Suzuma intambwe
4 desiccator, kandi ugapima. Subiramo gukama, gukonjesha, no gupima kugeza uburemere burigihe (itandukaniro riri hagati yuburemere bubiri ntabwo rirenze 0.5mg).
4.2 Shyira icyitegererezo cyamazi nyuma yo gukuraho ibintu byahagaritswe, bapima 100ml yicyitegererezo kivanze neza hanyuma uyungurure hamwe. Reka amazi yose anyure muyungurura. Noneho oza inshuro eshatu ukoresheje 10ml y'amazi yatoboye buri gihe, hanyuma ukomeze kuyungurura kugirango ukureho amazi. Niba icyitegererezo kirimo amavuta, koresha 10ml ya peteroli ether yoza ibisigazwa kabiri.
4.3 Nyuma yo guhagarika kuyungurura, gusohora witonze uyungurura membrane yuzuye SS hanyuma ukayishyira mu icupa ripima hamwe nuburemere bwumwimerere uhoraho, iyimurira mu ziko hanyuma uyumishe kuri 103-105 ° C mumasaha 2, hanyuma uyimure. muri desiccator, reka bikonje kubushyuhe bwicyumba, hanyuma ubipime, byumye inshuro nyinshi, gukonjesha, no gupima kugeza igihe itandukaniro ryibiro riri hagati yuburemere bwombi ari ≤ 0.4mg. i
5. Kubara:
Ibihagaritswe byahagaritswe (mg / L) = [(AB) × 1000 × 1000] / V.
Muri formula: A —— ihagaritswe ikomeye + iyungurura membrane hamwe no gupima uburemere bw'icupa (g)
B —— Membrane no gupima uburemere bw'icupa (g)
V —— urugero rwamazi
6.1 Ingano ikoreshwa yuburyo Ubu buryo burakwiriye kugena ibimera byahagaritswe mumazi mabi.
6.2 Icyitonderwa (gusubiramo):
Gusubiramo: Umusesenguzi umwe muri laboratoire ntangarugero 7 ingero zingana kurwego rumwe, hamwe no gutandukana bisanzwe (RSD) ibisubizo byabonetse bikoreshwa mukugaragaza neza; RSD≤5% yujuje ibisabwa.