I recently visited a user who is conducting research on kidney disease and found their method of testing water quality to be quite interesting - theyConduct a silver staining experiment to qualitatively determine organic compounds and ion impurities such as sulfides, cyanides, heavy metals, etc. in pure water.The kidney disease laboratory mainly detects tissue lesions through silver staining experiments. If the quality of pure water is poor, precipitation will occur, causing the experimental background to be blurred and affecting the observation of slides.
What we use for the teacher isGenie G Ultra Pure Water/EDI Pure Water Integrated MachineIn addition, the teacher's laboratory also has an imported laboratory ultrapure water equipment with good water habits, normal maintenance, and good condition. Before the experiment, I checked the water quality display on Genie G's main control screen, it was great!Electrical resistivity 18.2MΩ.cm，TOC 2.3 ppb.

The teacher took 3 water samples, 2 of which were ultrapure water produced by imported water machines, and 1 was produced by Lefeng Genie G. After about an hour, the experimental results came out (as shown in Figure 1), and the sample using Lefeng pure water was significantly better than the other two samples.

The results showed that the sample prepared with the water produced by the Le Feng Genie G ultrapure water machine was clearer than the other two samples, indicating that the ion impurity content in the water produced by the Genie G ultrapure water machine was lower.

Figure 1 Silver staining experiment results

In the afternoon, another sample was taken and tested using ICP-MS in the laboratory. The experimental results are shown in Figure 2. A is a blank sample of acetonitrile, B is a water sample produced by Lefeng Genie G, and C is an imported brand water sample. The experimental results once again prove that,There is no difference in water production between Lefeng pure water and imported brand ultra pure water.

Figure 2 ICP-MS experimental results

Previously, the teacher was accustomed to using imported laboratory water purifiers and was not very confident about the quality of domestic water purifiers. Facts speak louder than words, and the results of this comparative experiment have greatly satisfied the teacher. They have also developed more interest in the Le Feng pure water machine, opening the side cover of Genie G and carefully understanding the internal structure and consumables situation again. I am confident that Genie G's overall design and manufacturing process will definitely enhance the teacher's trust in using domestic pure water machines.

Lefeng's pure water machine products are all standard machines. Standard models, inEvery detail, including structure, flow path, circuit, appearance, program, etc., has been carefully scrutinized. The core components and spare parts are carefully selected, and the best are chosen after rigorous testingLe FengMature production process，A comprehensive quality inspection processandProfessional technical support teamThis further ensures that the product can withstand the test of end users. Especially after long-term use by a large number of users, Genie's design bugs (problems) have been promptly resolved by professionals after receiving user feedback. Its reliability and performance stability are beyond doubt, and it has also shown outstanding performance in terms of user experience.

Later, I talked a lot with the teacher,

From Genie G passing the evaluation of domestically produced instruments by Chinese customs and gaining expert recognition, to Le Feng defeating its competitors in one fell swoop at the Pennsylvania Medical School in the United States and successfully winning a large order of 16 sets~~

From the compatible consumables of the Milibo pure water machine developed by Lefeng, to the development history of Lefeng for so many years;

From exporting to over 100 countries and regions, to numerous typical user laboratories~~

From Lefeng's independent and controllable core competitiveness to how we ensure the stability of system operation~~

From the various noises in the scientific instrument market to Lefeng's calm and unconventional persistence~~

Sincere communication has helped the teacher enhance their confidence in using domestic equipment!

Yes, domestic laboratory instruments are advancing,

The Lefeng pure water machine will also continue to improve.

About Lefeng Biotechnology

Rephil Bioscience, Ltd. is a company under the Duoning Group that specializes in the research, design, and manufacturing of water purification and laboratory separation and purification products, serving users in the high-tech biotechnology and life science fields. Lefeng Company focuses on global development and has established sales offices in nearly 20 countries including China, the United States, France, India, and South Africa. It also provides OEM and ODM services to large international companies, with products sold to more than 100 countries including Europe, America, Japan, and South Korea. Many Ivy League universities, Harvard Medical School Dana Farber Cancer Institute, Johns Hopkins University School of Medicine, and the University of Pennsylvania School of Medicine are alsoLe Fengpure waterThe user of the device. Established for over ten years, LeFeng has continuously invested in research and development, creating its own product brand RephiLe and launching multiple new concept products - the Genie series with wireless connectivityPure Water SystemAnd intelligent typeHigh flow pure water workstationSuper Genie and others. At present, Lefeng provides a full range of ultra purification column series suitable for various applications, including low magnesium type, low boron type, ICP-MS special type, etc. It also offers compatible consumables for multiple Millipore pure water systems, allowing domestic brands to provide users with services comparable to imported products.