Chromatography

Mawallafi: Peter Berry
Ranar Halitta: 20 Yuli 2021
Sabuntawa: 13 Yiwu 2024
Anonim
Basics of chromatography | Chemical processes | MCAT | Khan Academy
Video: Basics of chromatography | Chemical processes | MCAT | Khan Academy

Wadatacce

The chromatography hanya ce ta rabuwa gauraye Ana amfani da gidaje da yawa a ko'ina cikin rassan daban -daban na kimiyya. Yana amfani da tsarin dabaru bisa tushen ƙa'idar riƙewa zuwa raba abubuwan da ke cikin cakuda cikin yanayi mai tsarki, ko don gano su a cikin cakuda da tantance daidai gwargwado.

Ta wannan hanyar, da chromatography ya ƙunshi fallasa wani cakuda ga takamaiman tallafi (gas, takarda, a ruwa tsaka tsaki, da sauransu) don cin moriyar bambance -bambancen da ke cikin saurin talla na kowane sashi na cakuda, gano su daga bakan launi wanda cakuda ke samarwa akan lokaci.

Tallace -tallacen (wanda baya sha) shine coefficient na adhesion na cakuda zuwa farfajiyar tallafi, kuma gwargwadon banbancin ragi na abubuwan haɗin cakuda, waɗannan za a iya raba su yadda yakamata ko kuma za a iya auna yawan adadin su a kowane hali.


Wannan tsarin rabuwa yana faruwa a matakai biyu:

  • Matsayi na tsaye. Ana amfani da cakuda akan takamaiman tallafi kuma an shirya shi don aunawa.
  • Wayar hannu. Wani abu yana motsawa akan goyan baya, don ba da damar amsawarsa tare da abubuwan haɗin cakuda kuma cewa bambanci a cikin ƙimar amsa ya raba su.

Ta wannan hanyar, wasu abubuwa za su so motsawa wasu kuma su zauna, gwargwadon yanayin su. Ana iya aiwatar da wannan ta amfani da kayan ado da wayoyin hannu na yanayi daban -daban: ruwa, m da gas.

Duba kuma: Misalan Gurasa

Misalan Chromatography

  1. Zuba ruwan inabi akan farin mayafi. Yayin da ruwan inabi ke bushewa cikin hulɗa da iska, abubuwa daban -daban da suka hada shi za su rina farin masana'anta launi daban -daban, don haka ba da damar a gane su lokacin da ba zai yiwu ba.
  2. A gwajin jini. Chromatography na samfuran jini galibi ana yin su don su iya ware da gano abubuwan da ke ciki, wanda ba a taɓa gani ba, dangane da launi da suke nunawa akan tallafi ko hura wani haske. Irin wannan lamari ne na miyagun ƙwayoyi ko wani abu na musamman, kamar giya.
  3. A gwajin fitsari. Fitsari, har ma fiye da jini, cakuda mahadi ne daban -daban, kasancewar ko rashin sa yana bayyana yadda jiki ke aiki. Don haka, ana iya yin rarrabuwa na chromatographic. don nemo abubuwan da ba a saba gani ba, kamar jini, gishiri, glucose ko magunguna.
  4. Binciken yanayin laifi. Kamar yadda a cikin fina -finai: ana ɗaukar yadudduka, zaruruwa, yadudduka ko wasu tallafi don lura da rabuwa da abubuwa daban -daban, kamar maniyyi ko jini, wanda a kallon farko ba za a gane shi ba.
  5. Binciken lafiyar abinci. Tun da an san halayen abinci lokacin da aka yi wa bakan chromatographic, Ana iya gani idan akwai wani nau'in abu mara kyau ko samfurin wakilan ƙwayoyin cuta a cikinsu daga ƙaramin samfurin.
  6. Tabbatar da matakan gurɓatawa. Ko a cikin iska ko ruwa, za a iya auna ƙimar abubuwan narkar da abubuwa marasa ƙarfi daga ƙaramin samfurin, ta amfani da takamaiman tallafi wanda ke ba da damar rarrabewa tsakanin mahaɗan, barin ruwa ya bushe, misali.
  7. Complex gwaje -gwajen ƙwayoyin cuta. Ana amfani da wannan dabara sosai don yaƙar cututtuka kamar Ebola, alal misali, saboda a wannan yanayin yana ba da damar rarrabewa tsakanin mafi ƙarancin ƙarancin ƙwayoyin rigakafi ta fuskar cututuka masu kisa.
  8. Aikace -aikacen Petrochemical. Chromatography yana da amfani yayin aiwatar da rarrabuwa hydrocarbons na man fetur da canza shi zuwa kayan da aka tace iri -iri, waɗanda ke da bambanci sosai da abubuwan da ake iya gani da adhesions.
  9. Binciken wuta. Don sanin ko an tsokani su ko a'a, ana amfani da chromatography na ragowar don tantancewa nuna kasancewar abubuwan da ba a zata ba wanda aikinsu ya bambanta da sauran, kamar yadda ya tabbata burbushin mai.
  10. Don ware tawada. Tunda inks sun ƙunshi launuka daban -daban a cikin matsakaicin ruwa, yana yiwuwa ware waɗannan aladu ta hanyar chromatography da kuma nuna bambancin dake tsakanin kowannensu. A zahiri, gwaji ne na gama gari idan aka zo bayanin wannan dabarar, ta amfani da alamomi masu launi.
  11. Gano rediyo. Tunda abubuwan rediyoaktif suna da ayyuka daban -daban da ƙimar fitar da abubuwa fiye da na yau da kullun, galibi ana iya gano su ta amfani da wannan dabarar a cikin dakin gwaje -gwaje. fallasa al'amura ga abubuwan da ke nuna canjin ƙimar amsawa.
  12. Don tantance tsarkin abu. Ana buƙatar babban kayan tsabta a masana'antu, musamman iskar gas (wanda rashin saurin sa ke da wahala) kuma hanyar tantance wannan shine gano chromatographic na ragowar sauran abubuwa, daga yin amfani da wani ruwa a tsaye lokaci.
  13. Nazarin ruwan inabi. A cikin gano giyar giya ta monovarietal, ana amfani da chromatography sau da yawa don sanin idan sun gauraye da wasu nau'ikan, tunda waɗannan za su gabatar da halaye daban -daban da za a iya ganowa a gaban wani matsakaicin matsakaici.
  14. Sarrafa distillation na masana'antu na ruhohi. Ta hanyar chromatography gas, za a iya gano mahimman abubuwan ingancin da ke cikin giya (ethanol, methanol, acetaldehyde, acetal, da sauransu), don haka ya ba da izinin gudanar da ayyukan mahaɗan.
  15. Nazarin ingancin man zaitun. Chromatography yana da mahimmanci a cikin bita da rarrabuwa na man zaitun, tunda yana ba da nazarin bayanin mai, acidity da ƙimar peroxide da ke cikin cakuda.

Wasu dabaru na ware gauraya

  • Misalan Crystallization
  • Misalan Distillation
  • Misalan Ƙarfafawa
  • Misalai na Ƙuntatawa
  • Misalai na Imantation



Ya Tashi A Yau

Kalmomin da ke waka da "aboki"
Yankuna tare da "zuwa"
Fatty acid