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.
Tha mòran fhactaraidhean àrd-inbhe againn le co-obrachadh domhainn, a bheir dhut toraidhean àrd-inbhe agus prìsean farpaiseach. Agus is urrainn dhuinn cuideachd lasachaidhean a thoirt seachad airson mòr-cheannach. Tha an ùine lìbhrigidh timcheall air 3-20 latha às deidh dearbhadh pàighidh.
Items |
Inbhe |
Toradh |
Coltas | White crystalline powder | A 'gèilleadh |
Assay | ≥99.50 | 99.98 |
Solubility(1M aq) | Clear,colorless solution | A 'gèilleadh |
PH(1% aq.) | 4.80-5.60 | 5.25 |
Heavy metals,ppm | ≤10.0 | A 'gèilleadh |
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 | A 'gèilleadh |
SO42- ,% | ≤0.05 | A 'gèilleadh |
Co-dhùnadh | Qualified |
1. An e factaraidh no companaidh malairt a th 'annad?
Tha sinn nar companaidh a tha ag amalachadh gnìomhachas agus malairt, a’ toirt seachad seirbheis aon-stad. Dh’ fhaodadh gabhail ri OEM.
2. A bheil thu a 'toirt seachad samples? A bheil e an-asgaidh no a bharrachd?
Saor an-asgaidh samples.The shampall cìs bathair feumar pàigheadh le ur taobh.
3. A bheil teisteanasan sam bith agad co-cheangailte ri smachd càileachd?
Teisteanas ISO 9001: 2008 gus dèanamh cinnteach à càileachd.
4. Dè a bu chòir dhomh a thoirt seachad gus luachan fhaighinn?
Bidh Pls ag innse dhuinn mun t-seòrsa toraidh a dh’ fheumas tu, meud òrduigh, seòladh agus riatanasan sònraichte. Thèid an luachan a dhèanamh airson do iomradh ann an ùine.
5. Dè an seòrsa dòigh pàighidh as fheàrr leat? Dè an seòrsa teirmean ris an tèid gabhail?
Cumhachan Lìbhrigeadh ris an deach gabhail: FOB, CFR, CIF, EXW;
Airgead pàighidh ris an deach gabhail: USD;
Seòrsa Pàighidh ris an deach gabhail: T / T, Western Union; Paypal, Dearbhadh Malairt.
Cànan air a labhairt: Beurla.
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