4-hydroxyethylpiperazin e ethanesulfonic acid (HEPES) is an important hydrogen ion buffering agent with good buffering capacity in the pH range of 6.8-8.2, which can control a constant pH for a long time. A concentration of 10-50mmol/L and a general culture medium containing 20mmol/L 4-hydroxyethylpiperazin e ethanesulfonic acid can provide good buffering capacity and have no toxic effect on cells.
1.Used as a biochemical reagent.
2.Biological buffering agents; Reaction buffer, pre hybridization buffer, and hybridization buffer for separating and analyzing RNA nuclear components; Used for RNA and T4RNA.
3.Molecular biology level is used to perform RNA3 '- end labeling using T4RNA ligase in Chemicalbook, and to isolate and analyze the reaction buffer components, pre hybridization buffer, and mild hybridization buffer components of nuclear RNA.
4.Cell cell adhesion, short-term cell aggregation culture, buffer solution used for cleaning tissues and cells.
HEPES (4-hydroxyethylpiperazin e ethanesulfonic acid) is a non-ionic zwitterionic buffer with high polarity, which is inert to various chemical reagents and enzymes, does not participate in or interfere with the process of biochemical reactions, and has no inhibitory effect on enzyme chemical reactions. Therefore, it can be specifically used for research on organelles and highly denatured, pH sensitive proteins and enzymes.
Waxaan leenahay warshado badan oo tayo sare leh oo leh iskaashi qoto dheer, kuwaas oo ku siin kara alaab tayo sare leh iyo qiimo tartan leh. Waxaan sidoo kale ku siin karnaa qiimo-dhimis iibsasho badan. Oo waxaanu la shaqaynaa shirkado badan oo soo gudbiya xamuulka, waxaanu u gaarsiin karnaa alaabta si badbaado leh oo qumman gacmahaaga. Waqtiga bixinta waa qiyaastii 3-20 maalmood kadib xaqiijinta lacag bixinta.
Items |
Heerka |
Natiijo |
Muuqashada | White crystalline powder | waafaqsan |
Qiimayn | ≥99.50 | 99.98 |
Solubility(1M aq) | Clear,colorless solution | waafaqsan |
PH(1% aq.) | 4.80-5.60 | 5.25 |
Heavy metals,ppm | ≤10.0 | waafaqsan |
Loss on drying,% | ≤1.00 | 0.11 |
Ultraviolet absorbance 260nm(1M aq) | ≤0.100 | 0.020 |
Ultraviolet absorbance 280nm(1M aq) | ≤0.070 | 0.013 |
Fe3+ ,ppm | ≤5 | waafaqsan |
SO42- ,% | ≤0.05 | waafaqsan |
Gabagabo | Qualified |
1. Ma waxaad tahay warshad ama shirkad ganacsi?
Waxaan nahay shirkad isku-dhafan oo warshado iyo ganacsi ah, oo bixisa adeeg hal-joojin ah. OEM waa la aqbali karaa.
2. Ma bixisaa muunado? Ma bilaash baa mise waa dheeraad?
Muunado bilaash ah. Kharashka xamuulka ee muunada waxa loo baahan yahay in dhinacaaga laga bixiyo.
3. Ma haysaa wax shahaado ah oo la xidhiidha ilaalinta tayada?
ISO 9001: 2008 shahaado si loo hubiyo tayada.
4. Maxaan bixiyaa si aan u helo xigasho?
Pls noo soo sheeg nooca badeecada aad u baahan tahay, dalbo tirada, ciwaanka iyo shuruudaha gaarka ah
5. Habka lacag-bixinta noocee ah ayaad doorbidaysaa? Waa maxay nooca shuruudaha la aqbalo?
Shuruudaha keenista la aqbalay: FOB, CFR, CIF, EXW;
Lacagta Bixinta La Oggolyahay: USD;
Nooca Lacag-bixinta La Aqbalay: T/T,Ururka Galbeedka; Paypal, Hubinta Ganacsiga.
Luuqadaha lagu hadlo: Ingiriis.
Qaybaha alaabta