Muaj ob txoj kev tshawb nrhiav tseem ceeb ntawm disodium-5-ribonucleotide (IMP + GMP) : QB / T 2845-2007 zaub mov ntxiv -Disodium-5-ribonucleotide (IMP + GMP) thiab SB / T 10371-2003 nqaij qaib essence.
Ob txoj kev ntsuas tus qauv siv spectrophotometric, tab sis cov kev ntsuas tshwj xeeb txawv heev
QB / T 2845 zaub mov additive - disodium-5-ribonucleotide (IMP + GMP), saws
Dual wavelength method [1]: hnyav 0.4000 (m) g ntawm cov qauv, yaj thiab kho qhov ntim nrog dej
Rau 250 ml, nqus 5.0 ml, thiab kho qhov ntim nrog 0.01 mol / L hydrochloric acid rau
250 ml, nrog 0.ol mol / L raws li dawb paug, lub absorbances A thiab B ntawm 250 nm thiab 280 nm raug ntsuas nrog 10 mm cuvette. Disodium-5-ribonucleotide (IMP + GMP) muaj
Qhov ntau yog xam raws li cov qauv (1).
ω Puas yog cov dej noo feem pua ntawm cov saj nucleotide disodium.
Sb / T 10371 txais ib txoj kev wavelength.]: Nyhav 2 ~ 4G qauv
(m) tau yaj nrog me me ntawm 0.01 mol / L hydrochloric acid thiab tsau rau 100 ml,
Lim, nqus 5.00 ML rau 100 ml volumetric hwj thiab siv
0.01 mol / L hydrochloric acid rau ntim. Siv 10 hli cuvette, 0.01 mol / L
Hydrochloric acid tau siv los ua qhov khoob los ntsuas nws qhov nqus.
Ob txoj kev no tau siv tam sim no, thiab tsis muaj kev txwv nruj hauv daim ntawv thov teb
Txwv. Sb / T 10371 yog txoj kev tshawb pom ntawm nqaij qaib essence, feem ntau aiming ntawm
I + G cov ntsiab lus tshawb pom: cov ntsiab lus yog li 1 ~ 39,6, thiab QB / T 2845 yog
Txoj kev tshawb pom ntawm ntshiab I + G additives, tab sis nyob rau hauv ib co lwm yam I + G muaj
Nws kuj yog siv rau hauv cov khoom uas muaj tsawg, xws li GB / T 8967
Cov ntsiab lus ntawm I + G hauv cov roj ua kom zoo yog ntsuas los ntawm kev hais cov ntsiab lus ntawm I + G hauv QB / T 2845
Kev kuaj xyuas txoj kev. Raws li qhov xwm txheej no, tus sau tau muab cov nqaij qaib ua piv txwv thiab muab piv rau ob
Kev sib piv ntawm ob txoj hauv kev tau ua los tshawb xyuas lawv qhov zoo sib xws thiab qhov sib txawv, thiaj li ua kom muaj kev kawm ntxiv ntawm
Nws muab cov ntaub ntawv siv rau kev tsim cov qauv rau kev txiav txim siab ntawm I + G.
Post lub sij hawm: Sep-13-2022