2019年2月1日星期五

Corn starch have been widely used in daily life

Corn starch(maize starch) has become a popular ingredient in cooking due to its many uses. It is also a natural ally of pemphigus: it is a gluten-free carbohydrate.
But its use is not limited to cooking: this element serves many other things and can really help you.
It's a widely used food additive not only in food industry but also in the daily life.
1, oil remover
If you have a leather garment, such as a jacket or trousers, and you accidentally drop some oil... Keep calm! Corn starch will solve this problem.
You only need to cover the stain with a small amount of cornstarch and leave it for one night.
Everything will be clean the next morning, the dirt will disappear and your stuff will become fresh.

2, relieve sunburn
If you don't have proper protection to expose yourself to the sun, and you've got annoying or even painful burns, then you need to do two things.
First, learn the lesson: you should use sunscreen! The effect of the sun's rays on the skin is not a joke, you have to take care of them.
Next, prepare a mixture of cornstarch and water and apply it to the skin. Allow to stand for a few hours until dry, then rinse off with warm water.
Of course, if you have any questions, don't forget to consult a doctor.

3. Calm the athlete's feet
How annoying the athlete's feet are! Itching, redness, dryness...
If you don't have a commercial remedy for this unpleasant problem at hand, you can use cornstarch: put a little on your feet, especially in the affected area, and another point, such as talcum powder.
This will calm you down temporarily, but please make an appointment with the podiatrist for effective personalized treatment based on the severity of the condition.

4, treatment of oily skin
The problem of oily skin has a greasy problem. In addition to being ugly, they are often painful.
Cornstarch is very suitable for the treatment of oily skin because its properties help you absorb excess oil.
Place a small amount of cornstarch on the acne and let it move for at least 30 minutes.

5, treatment of oily hair
Corn starch is not only an ally of oily skin, it also helps to eliminate the oiliness of the scalp that affects the entire hair.
Corn starch has the same reasons as described above and has good convergence characteristics.
The ideal treatment for this type of problem is to make a paste from cornstarch and water and apply it to the entire scalp. Wait 30 minutes, then rinse with warm water. You can repeat the program once or twice a week.

6, control sweat
What happens sometimes is that no matter how much we care about our hygiene habits, we will sweat a lot. It depends on each person's condition, temperature, environment and body.
How to solve this problem? First, you can consult your endocrinologist to rule out hormonal problems. At the same time, in order to prevent excess sweat, you can place some corn starch in your armpits.

7. Clean your pet
Sprinkle enough cornstarch on your pet and rub it with a brush. This will help you remove surface dirt from non-human companions.

8, thick sauce
Imagine this situation: you have dinner guests, you have prepared a fine meal... but the sauce is too liquid. what can you do?
First, resist the temptation to call for delivery and order pizza.
Once, add enough cornstarch to your preparation until you get the thickness you want. Your guests will never know your little tricks, it's simple but great.

9, suppressing the sound of the wooden floor
Everything made of wood is beautiful, but in the long run it can cause problems. It can rot, rupture, grow up with mushrooms... If your floor is this material, then over time, the accumulation of footprints has been created in narrow gaps that create noise when walking .
In this case, cornstarch is a good friend.
Sprinkle the cornstarch on the sharp portion and sweep over the excess. When sweeping the floor, you will introduce dust into the floor and it will avoid noise.

10. Clean your glass
Cleaning the windows looks stupid, but it is not. The cleaned glass is not colored, and opaque or traced chemical cleaners or water droplets are difficult.
Here, corn starch is also useful. how about it?
Mix 1 tablespoon cornstarch, half a cup of vinegar, half a glass of water and half a lemon juice. The formulation is placed in a spray bottle and used as with any commercial detergent. You will see your windows will be impeccable!

11, it can help you iron
Have you heard of clean clothes after the ironing process? It looks good and has no wrinkles.
You can prepare your own starch for ironing by:
Put one tablespoon of cornstarch in half a liter of water;
Spray the mixture with this mixture immediately before ironing.
The result will be incredible and very economical.

12. Untie the knot that is impossible to unravel
It all happened to us: knots were formed on the shoulder straps of the shoelaces or backpacks, and they were so tight that they could not be unlocked.
Corn starch is a good helper for this situation: sprinkle on the knot. The problem is solved!

Sorbitol,Maltodextrin,sucralose are also normally used in our food and drink.
In actual production, sorbitol can be used as a nutritive sweetener, wetting agent, chelating agent and stabilizer. Foods using sorbitol are available for patients with diabetes, liver disease, and cholecystitis.

2019年1月24日星期四

The future of n-methylpyrrolidone is broad

N-methylpyrrolidone (nmp) is a polar aprotic solvent with high boiling point, strong polarity, low viscosity, strong solubility, no corrosion, low toxicity, good chemical and thermal stability, etc. In the field of aromatics extraction, purification and separation of acetylene, olefins, diolefins, polymer solvents and polymerization solvents. With the rapid development of domestic high-strength engineering plastics such as polyamide, polyimide, and polyphenylene sulfide, and the high-strength fiber, higher requirements are placed on the quality and demand of N-methylpyrrolidone.

At present, there are three main industrial processes for N-methylpyrrolidone: a) γ-butyrolactone (GBL) and monomethylamine (MMA) to synthesize N-methylpyrrolidone; b) γ-butyrolactone and mixed amine Reaction synthesis of N-methylpyrrolidone; c) Dehydrogenation-amination of 1,4-butanediol to prepare N-methylpyrrolidone. The production capacity of N-methylpyrrolidone abroad is mainly concentrated in the hands of a few large companies. More than 10 companies in China are engaged in the production of N-methylpyrrolidone, but the scale of the device is relatively small, the sources of raw materials are many, and the quality of products is poor. Production technology needs to be improved. At present, the annual production of apparent N-methylpyrrolidone in China is 53 kt / a, and it is increasing at a rate of 6% to 8% per year. The prospect of NMP is relatively broad.

2 pyrrolidone is used to prepare a white ink. White ink provides good visibility when printed on transparent and colored substrates. There are particular problems when using white ink in inkjet printing. For example, titanium dioxide is a common white ink pigment and is typically three to four times heavier than pigments used in other color inks. Thus, pigments such as titanium dioxide tend to be more strongly agglomerated and precipitated, and thus clog the nozzles of the inkjet system. Therefore, the development of white inks containing titanium dioxide is particularly challenging. The white ink of the present invention is particularly advantageous for printing colored, transparent and translucent substrates.

polyvinylpyrrolidone K,PVP K has been developed into homopolymer, copolymer and cross-linked polymer. It has three specifications and hundreds of varieties: industrial grade, pharmaceutical grade and food grade. In the application field, the first artificial plasma solvents have been developed into medicine, cosmetics, food, coatings, adhesives, printing and dyeing auxiliaries, separation membranes, photosensitive materials and other fields.

2018年12月24日星期一

How and Where is AdBlue Replenished

Refilling the AdBlue tank is not a do-it-yourself task. Although it is possible to purchase the urea solution at the retailer, it is generally available only through a dealership or service shop. The systems are designed with a capacity of several gallons which transforms into several thousands of miles. Under normal vehicle operating conditions, the AdBlue tank needs to be refilled only during regularly scheduled maintenance.


urea solution


Guangzhou EverBlue Chemicals Co.,Ltd has more than 9 years experience of AdBlue production, as well as the sub-branch of BlueBasic Italian company. Our main product includes AdBlue liquid, AdBlue dispenser, AdBlue production machine, SCR accessories etc.

2018年11月25日星期日

MOPS, MES, and MOPSO, what is the difference between them

The zwitterionic buffer, also known as Good's Buffer, is a series of N-substituted sulfamic acids that have good pH stability and are inert to a variety of chemicals and enzymes. Among them, the morpholinic buffers, including MOPS Sodium Salt, MES, and MOPSO, have some common character, for example, they do not form complexes with most metal ions and are therefore suitable for solutions containing metal ions. But what is the difference between them?

Let’see the following table:

Table 1. The comparation of MOPS, MES, MOPSO.

Buffer
Structure
Full Name
Formula
pKa(25°C)
Buffering range
MOPS

3-(N-morphine) Propanesulfonic acid
C7H15NO4S
7.14
6.5~7.9
MES

2-(N-morpholino) ethanesulfonic acid
C6H13NO4S
6.1
5.5~6.7
MOPSO

3-(N-morpholino)-2-hydroxypropanesulfonic acid
C7H15NO5S
6.87
6.2~7.6

The application of MOPS, MES and MOPSO:

MOPS:
(1) running buffer in electrophoresis and protein purification in chromatography;
(2) Formulated into a variety of agar medium for the culture of bacteria, yeast and mammalian cells;
(3) Lysis buffer that can be used for Escherichia coli cells;
(4) as eluent in gel filtration chromatography;
(5) Northern blot as a buffer for RNA isolation and transfection;
(6) For bicinchoninic acid (BCA) assay;
(7) Studies on electron transport and phosphorylation of chloroplast sample preparation

MES:

(1) Biological buffer, can be used to replace highly toxic cacodylate, and ion buffer citrate and malate;
(2) Buffered media commonly used for bacterial, yeast and mammalian cells. High concentrations of MES are toxic to most plants, but can be used in plant media at concentrations ~10 mM;
(3) as a buffer for studying Tau protein in culture;
(4) Because of its low ion mobility and low conductivity at high concentrations, it can be used in many types of electrophoresis and chromatography including capillary electrochromatography, gel filtration chromatography, phosphocellulose column chromatography, hydrophobic interaction chromatography, cation exchange chromatography and SDS-PAGE;
(5) Complex with organotin (IV) molecules as antitumor agents.

MOPSO:

(1) use as a carrier electrolyte in capillary electrophoresis, and as a crystallization buffer for glutathione synthetase;
(2) used in fluorescence spectrometry, spectrophotometry and isothermal titration calorimetry;
(3) Interaction with the peptide backbone of bovine serum albumin (BSA) to prevent thermal denaturation of BSA;
(4) as one of the buffer components for copper correlation analysis;
(5) used as a buffer carbon yeast extract medium composition;
(6) MOPSO-ethanol buffer system was prepared to fix urine-derived cells;
(7) A buffer system for the determination of biological by-products of marine crude oil.


Although Good's buffer has the advantages of not participating in and not interfering with the biochemical reaction process, not inhibiting the enzymatic chemical reaction, and not reacting with the metal ion. However, in the specific use, there are still some differences in the application range of several morpholine series buffers MES, MOPS (CAS 1132-61-2) and MOPSO. Therefore, it is necessary to consider the buffer requirements and specific experimental types so as to select the most appropriate buffer.



2018年11月19日星期一

The incompleted transfer of protein in WB? CAPS may help you!


We always encountered various problems in Western Blot (WB):
  • Incomplete transfer of protein?
  • High background?
  • No positive bands?
......
Below we will give corresponding solutions to the possible reasons for the problem of insufficient transfer of protein, and hope it can help you succeed in the experiment.


1. Why does the transfer of protein is needed?

Western Blot is a method in which proteins are transferred to a membrane and then detected using an antibody. For known expression proteins, the corresponding antibody can be used as a primary antibody for detection, and the expression product of the new gene can be detected by the fusion portion of the antibody.

The protein sample separated by PAGE is transferred to a solid phase carrier (for example, a nitrocellulose membrane), and the solid phase carrier adsorbs the protein with a non-covalent bond, and can maintain the type of polypeptide and its biological activity. The protein or polypeptide on the solid phase carrier is used as an antigen, and the corresponding antibody is immunoreactive, and then reacted with the enzyme or the isotope-labeled secondary antibody, and the protein expressed by specific gene is detected by substrate color development or autoradiography.

2. The reason and solution of the incompleted transferance

Reasons
Solutions
The film is not completely soaked
Use 100% methanol permeable membrane
molecular weight of Target protein is less than 10,000
Select a small pore size membrane to shorten the transfer time
The isoelectric point of the target protein is equal to or close to the pH of the transfer buffer
Try using other buffers such as N-Cyclohexyl-3-Aminopropanesulfonic Acid (CAPS) buffer (pH 10.5) or using low pH buffers such as acetate buffer
Methanol concentration is too high
Excessive methanol concentration causes the protein to separate from the SDS, thereby precipitating in the gel, while causing the gel to shrink or harden, thereby inhibiting the transfer of high molecular weight proteins. Reduce methanol concentration or use ethanol or isopropanol instead
Insufficient transfer time
Extended transfer time for thick gels and high molecular weight proteins

3. Preparation method for CAPS (CAS 1135-40-6) buffer

Please see the following table (Both concentrations of buffer and sodium hydroxide are 0.1 mol/L):

pH of CAPS Buffer
Volume (CAPS)
Volume (NaOH)
6.8
250
0
10.0
218.3
31.7
10.5
178.6
71.4
10.8
156.3
93.7
11.2
138.9
111.1
The specific operation of the preparation is: 0.1 mol/L CAPS buffer solution is first prepared in a volumetric flask. During the configuration process, the buffer has to be dehydrated at a high temperature and cooled in a desiccator; 0.1 mol/L sodium hydroxide solution is also formulated at the same time. According to the formula in the above table, a buffer solution corresponding to pH can be prepared, and sodium hydroxide is mainly used to adjust the pH.

Western blotting can be applied to detect target proteins from protein mixtures, quantitatively or qualitatively determine the expression of proteins in cells or tissues, and subsequent analysis of protein-protein, protein-DNA, and protein-RNA interactions. Film transfer is the basis of WB, and its quality is the key to the success of WB. We hope that the above methods can help you succeed in the process of transfor.


2018年11月16日星期五

How to check if our somabiotech Somatropin is original

Recently, we've been reported by our customers that counterfreit Somabiotech brand of HGH 10iu appeared on the market. We now inform you that all our Somabiotech somatropin is with anti-counterfeit labels, if there is no anti-counterfeit label in the packaging, all are considered to be counterfeit products.

You can also verify the Security code in our website. Here it is the link for it:
http://v.cnbyi.com/kh/Somabiotech/ac.htm

2018年11月6日星期二

How to choose a polypropylene model suitable for your enterprise sewage treatment?

How to choose a polypropylene model ?
Although polyacrylamide is favored by everyone in sewage treatment, it is not a panacea, not a single model can solve all the problems, and different types and models of polyacrylamide are needed for different water quality of sewage.
Foshan Boguan Trading Co., Ltd.

Different enterprises of the nature of the wastewater is different, have plenty of acidic water, have plenty of alkaline water quality, and water quality is neutral, some containing oil, some contain lots of organic compounds, some color, some contain large amounts of sediment, there are all kinds of situation, foshan jianmei aluminum group is a large aluminum plant, the company to provide customers the anionic polyacrylamide have solved the problem of aluminum sewage, and get the customers satisfied with the products. So, how to choose the right polyacrylamide better and more reasonably?
Foshan Boguan Trading Co., Ltd.

Generally speaking, the treatment effect of cationic polyacrylamide is good for wastewater with acidic water quality, and anionic polyacrylamide is good for wastewater with alkaline water quality. Of course, the quality of neutral sewage shows relatively alkaline and acidic sewage is easy to treat. If the water quality of sewage is too acidic, it is generally difficult to treat. The usual practice is to add alkali into the sewage to adjust the ph of sewage so that the sewage reaches the best neutral level.
On the contrary, if the sewage shows high alkaline strength, it is necessary to add acid to adjust the ph of the sewage. Through repeated experimental comparison, select the model with the best experimental effect, and then check whether the selected model is also suitable for production in the actual production process.