Is dimethylformamide and isopropyl alcohol miscible?

Dimethylformamide

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Dimethylformamide,1968-12-2

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Jieshikang

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Qingdao, China

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2021-10-08

Product Details

Dimethylformamide,1968-12-2

Qingdao Jieshikang Biotechnology Co., Ltd. has the industry's professional purification equipment, product quality is assured and reliable. If the actual content of the product is not consistent with the product labeling, we can provide a full refund. At the same time, we are the agent of the standard products of CIQ and the original imported standard products. The same unit to buy our products can accumulate points exchange (cell phones, computers, tablets, etc.).

Product Information: Dimethylformamide, 1968-12-2

Ordering Information:

CAS #: 1968-12-2 English Name: DMF

Divisional Formula: C3H7NO Alias: N,N-Dimethylformamide;

Particle Number: 73.09 Storage Mode: Normal Temperature

Size: 25g, 25g, 25g. p>Specification: 25g/50g/100g/branch Validity: Long-term preservation

Number: HXSJ-021147 Place of Origin: Qingdao, China

Use: For scientific research experiments only

Remarks:

Product Pictures:

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Product Advantages:

1. The purity is in accordance with the purity required by Pharmacopoeia.

2. 2000 varieties of standardized Chinese medicine products for your one-stop shopping.

3. We provide testing service, and can provide raw materials according to customer requirements to extract the required products.

4, the purity of the products, such as the purity of the products shown on the packaging is inconsistent with the full refund.

5, our company has laboratories in Beijing, Shanghai, Wuhan, can provide customers with technical services throughout the experiment.

6, hospitals and schools and other units can be shipped before payment, free of your worries about product quality.

HPLC Note:

1. The mobile phase must be used HPLC grade reagents, filtered to remove particulate impurities and other substances before use (make

? Use 0.45um or finer membrane filtration).

2. After filtration, the mobile phase should be degassed by ultrasonic waves, and after degassing, it should be restored to room temperature before use.

3. Pure acetonitrile should not be used as the mobile phase, which will make the check valve stick and cause the pump not to feed.

4. When using buffer solution, rinse the line and column with deionized water for one hour immediately after sample preparation, and then

rinse with methanol (or aqueous methanol) for more than 40 minutes to fully remove the ions. For the outside of the plunger rod, it must also be rinsed with deionized water for more than 20 ml after making the sample

5. If the instrument is not used for a long time, the column should be removed and sealed with a plug to save it. Note that the column should not be saved in pure water, but in organic phase (e.g., methanol, etc.) because pure water is prone to mold growth.

6. After each sample, the injector should be cleaned with the solvent that dissolved the sample.

7. C18 column * can not enter the protein samples, blood samples, biological samples.

8. Clogging causes too much pressure, according to the pre-column → filter in the mixer → line filter → check and clean the check valve

? Cleaning methods; ① isopropyl alcohol as a solvent rinse: ② placed in the middle of the isopropyl alcohol with ultrasonic cleaning;

9. Bubbles will lead to unstable pressure, poor reproducibility, so try to avoid generating bubbles in the process of use.

10. If the inlet tube is not liquid, use a syringe to aspirate: usually the mobile phase is cleared before infusion.

11. Pay attention to the pH range of the column, do not inject strong acid and alkali samples, especially alkaline samples.

12. When replacing the mobile phase, the filter tip should be placed in a beaker and shaken while Jing washed, and then inserted into the new mobile phase

. When replacing a non-miscible mobile phase, use isopropyl alcohol as a transition.

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Fudan University Dimethylformamide,1968-12-2Guizhou Medical University dimethylformamide,1968-12-2 Qingdao University dimethylformamide,1968-12-2 University of Hong Kong

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Qingdao Kirst Bio-technology Co.Ltd.

VIP 9 Years

Contact Ting Wang Contact cell phone to call the cell phone Contact landline to call the landline Location City Qingdao City, Shandong Province

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