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.
Muna da masana'antu masu inganci da yawa tare da haɗin gwiwa mai zurfi, wanda zai iya ba ku samfuran inganci da farashin gasa. Kuma muna iya ba da rangwamen kuɗi don sayayya mai yawa. Kuma muna ba da haɗin kai tare da ƙwararrun kamfanoni masu jigilar kaya, za su iya isar da samfuran cikin aminci da kwanciyar hankali ga hannunku. Lokacin bayarwa shine kimanin kwanaki 3-20 bayan tabbatar da biyan kuɗi.
Items |
Daidaitawa |
Sakamako |
Bayyanar | White crystalline powder | Ya dace |
Assay | ≥99.50 | 99.98 |
Solubility(1M aq) | Clear,colorless solution | Ya dace |
PH(1% aq.) | 4.80-5.60 | 5.25 |
Heavy metals,ppm | ≤10.0 | Ya dace |
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 | Ya dace |
SO42- ,% | ≤0.05 | Ya dace |
Kammalawa | Qualified |
1. Shin ku masana'anta ne ko kamfani na kasuwanci?
Mu kamfani ne mai haɗa masana'antu da kasuwanci, samar da sabis na tsayawa ɗaya. Ana iya karɓar OEM.
2. Kuna samar da samfurori? Yana da kyauta ko kari?
Samfuran kyauta. Ana buƙatar biyan kuɗin jigilar samfurin ta gefen ku.
3. Kuna da wasu takaddun shaida masu alaƙa da kula da inganci?
ISO 9001: 2008 takardar shaida don tabbatar da inganci.
4. Menene zan bayar don samun zance?
Pls sanar da mu nau'in samfurin wanda kuke buƙata, adadin oda, adireshi da takamaiman buƙatu. Za a yi zance don bayanin ku cikin lokaci.
5. Wane irin hanyar biyan kuɗi kuka fi so? Wane irin sharuɗɗan ne ake karɓa?
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Harshe Ana Magana: Turanci.
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