Tabiiy birikmalar kimyosidan praktikum ( uslubiy qo’llanma)


PIGMENTLAR ........................................................................................................... 117



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tabiiy birikmalar kimyosidan praktikum

PIGMENTLAR ........................................................................................................... 117 
O’simlik pigmentlarini kolonkali хromatografiyausulida aniqlash. .............................................. 117 
O’simlik pigmentlarini qog’ozda taqsimlanishхromatografiyasi bilan aniqlash. ........................... 118 
Karotin olish uslublari :................................................................................................................... 118 
Meva va sabzavot shiralarida askorbin kislotasi( vitamin C) borligini YU Q Х usuli bilan aniqlash.
 ......................................................................................................................................................... 119 
Limon va mahorkada limon kislotasi borligini YUQXAniqlash .................................................... 120
 
Kofe va choyda kofeinni YUQX usuli bilan aniqlash………………………………………121 
Sariyog’ tarkibidagi moy kislotasini YUQX usulibilan aniqlash. .................................................. 121 
Askorbin kislotani sifat reaksiyasi yordamida aniqlash .................................................................. 121 
Askorbin kislota miqdorini aniqlash ............................................................................................... 122 
Na'matak o'simligining mevasi tarkibidagi askorbin kislota miqdorini aniqlash. .......................... 122 
Mahsulot tarkibidagi vitamin k1 ni xromatografik usul yordamida aniqlash (ХI DF bo'yicha) .... 123 
Yurak glyukozidlariga rangli reaksiyalar. ....................................................................................... 124 
Saponinlarga rangli reaksiyalar. ...................................................................................................... 125 
G’o’zaning ildiz po’stlog’idan oshlovchi moddalar olish.......................................................... 127 
Antrasen unumlariga sifat reaksiyalar. ............................................................................................ 127 
Gossipolni gossipolatsetat holida ajratib olish ........................................................................... 129 
Toza gossipolni olish ................................................................................................................... 129 
Flavonoidlarga sifat reaksiyalar ...................................................................................................... 130 
Flavonoidlar uchun reaksiyalar ....................................................................................................... 131 
Ishqoriy parchalash ......................................................................................................................... 131 
Flavonollar ...................................................................................................................................... 132 
O'simlik xom-ashvosida kumarin xosllalarini topilishi .................................................................. 133 
O'simlikiardan flavanoidlarni ajratib olish ...................................................................................... 133 


185 
Erituvchilar sistemasi ...................................................................................................................... 135 
Qog'oz xromtografiyasida flavonoidlarni aniqlash ......................................................................... 136 
Kumarinlarga sifat reaksiyalar ........................................................................................................ 136 
Oshlovchi moddalarning tasnif reaksiyalari; .................................................................................. 137 
Katexinlar ........................................................................................................................................ 139 
Tanninni olish ............................................................................................................................... 139 
Gall kislota olish ........................................................................................................................... 139 
Amilaza faolligini aniqlash. .......................................................................................................... 140 
α-va β- amilazalarning faolligini kolorimetrik aniqlash uslubi.................................................. 140 
α- va β- amilazalarning faolligini aniqlash .................................................................................. 141 
Amilaza ingibitorlarining faolligini aniqlash .............................................................................. 142 
Amilaza ingibitor vityajkasini tayyorlash. ................................................................................... 142 
α - amilazani bug’doy o’smalaridan ajratish ............................................................................... 143 
α - amilaza faolligini reaksion aralashmaga uning ingibitorini qo’shganda aniqlash ........... 144 
Vino, vino – xomashyolarida, konyak va konyak spirtlarida aldegidlarni aniqlash ................ 144 
Konyak va konyak spirtlarida o’rta efirlarni aniqlash ................................................................ 145 
Vino va konyak spirtlari tarkibidagi o’yuvchi kislotalarni aniqlash. ....................................... 147 
Poliamid (polikaprolaktam) xokasini tayyorlash ...................................................................... 147 
Kalonkali va yupqa qavatli xromotogrqfiya uchun silikogel tayyorlash ................................. 148 
Dekalso adsorbentini tayyorlash. .................................................................................................. 148 
Petroley efirini tozalash. ............................................................................................................... 149 
Benzolni suvsizlantirish va tozalash ............................................................................................. 149 
Asetonni suvsizlantirish va tozalash ............................................................................................ 150 
Xloroformni tozalash ..................................................................................................................... 150 
Dietil efirni tozalash. ...................................................................................................................... 150 
Metil spirtini tozalash...................................................................................................................... 151 
Etil spirtini suvsizlash va tozalash. ............................................................................................. 151 
Absolyut spirt olish ....................................................................................................................... 152 
Dastlabki tekshirishlar..................................................................................................................... 152 
Organik moddalarni ajratish, tozalash va tahlil qilish..................................................................... 160 
Ilk taxlil qilish ............................................................................................................................... 162 
Yonuvchanlik va kul hosil qilishi. .............................................................................................. 162 
Moddaning sifat taxlili. ................................................................................................................. 163 
Azotni aniqlash. ............................................................................................................................. 164 
Oltingugurtni aniqlash.................................................................................................................... 165 
Kislorodni aniqlash. ....................................................................................................................... 166 
Bromni aniqlash. ............................................................................................................................ 166 
Ftorni aniqlash................................................................................................................................ 166 
Moddaning eruvchanligini aniqlash. .............................................................................................. 166 
Aromatik uglevodorodlarni (arenlarni) aniqlash. .......................................................................... 169 
Aldegid va ketonlarni aniqlash. ................................................................................................... 169 
Feling eritmasi bilan reaksiya ...................................................................................................... 170 
Shiff reagenti bilan reaksiya ......................................................................................................... 170 
Spirtlar. fenollar. venollarni ochish reaksivalari. ............................................................................ 170 
Karbon kislotalarni aniqlash ........................................................................................................... 172 
Kislota angidridlari va galogenangidridlarni aniqlash ................................................................ 172 
Aminlarni aniqlash: ........................................................................................................................ 173 
Nitrobirikmani aniqlash: ................................................................................................................ 174 
Galogen hosilalarni aniqlash: ......................................................................................................... 174 
Murakkab efirlarni aniqlash. ......................................................................................................... 175 
Ketonlarni aniqlash. ....................................................................................................................... 175 
Merkaptan va tiofenollarni aniqlash. ........................................................................................... 175 
Uglevodorodlarni aniqlash. ............................................................................................................ 176 
Spektroskopiya usullari haqida. .................................................................................................... 176 


186 
Asetillash ......................................................................................................................................... 178 
Metillash.......................................................................................................................................... 178 
Kislotali gidroliz ............................................................................................................................. 178 
Adabiyotlar………………………………………
…………………180 
Belgining 
mazmuni……………………………………………
……181

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