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Enter the instrument world of Jena analytical instruments in Germany

in the morning of April 9, we got on the fastest ice train in Germany, left Bremen in northern Germany, and drove to Jena in central Germany. After getting off the train, we saw a kind old man waiting for us at the station. He was Mr. Tiede of Jena company in Germany. He was one of the founders of Jena analytical instruments company. The enthusiastic Mr. Tiede introduced the history of Jena city in Germany to us easily and quickly, and took us to visit the old city wall and Jena University left by the city. Although the city is small, with only 100000 people, it has become a very famous city in Germany because of the following points:

first, it can be said to be Karl The city of Carl Zeiss. Zeiss is one of the most famous optical instrument manufacturers in the world. The headquarters of Zeiss, many optical instrument production bases and subordinate related enterprises are located here. We saw many magnificent buildings with the logo of Zeiss company

second, this is the seat of Jena University, which is one of the most famous universities in Germany. Many famous scholars have studied and taught here, such as Goethe, Schiller, Marx, etc. With a long history and rigorous academic tradition, the university has trained a large number of excellent scientists and engineers for Germany, and has also become the guarantee of human resources for many local high-tech enterprises

Mr. Carl Zeiss founded the company in Jena in 1846. Since Mr. Zeiss developed the first flame photometer in 1937, 150000 photometers have been sold in total; In 1971, Zeiss technology company developed the first atomic absorption; In 1991, the first toc/tn, tox product was developed; In 1995, the analytical instrument department of Zeiss company became independent and became Analytik Jena company; In 2002, Jena analytical instruments opened its own production and research department on the basis of the atomic absorption plant of Perkin Elmer in Germany; In 2004, the world's first continuous light source atomic absorption was developed

the company attaches great importance to innovation, and the following is the company's "innovation development history":

1994, the world's first simultaneous measurement of toc/tn

1997, the first time to launch a fully automated AAS solid injection system

2000, the first time to use variable magnetic field horizontal heating technology on AAS graphite furnace

2002, for combustion analysis, especially to launch dual furnaces to achieve experimental power Closed loop control system of displacement, etc.

2003 flammensensor technology developed for element analysis

2003 is the first high-speed photometer and diode array detector that can replace 50 samples

2004 launched fast PCR

2004 launched high-resolution continuous light source atomic absorption contriaa

Mr. Tiede said that because the company's product positioning is relatively high-end products, Therefore, the training and technical services for users are particularly important. The company has also organized user clubs to regularly conduct centralized training for users, which also enables users to learn from each other and improve the use level of the instrument

next, Mr. Tiede took us to the production workshop of atomic absorption, which is similar to thermofisher. Except for a few core components, most of the components are outsourced. Therefore, it is a production workshop, which is actually an assembly and commissioning workshop. There are very few workers in the workshop who can meet the requirements of GB, ASTM, DIN, JIS and other specifications, and all parts and tools are placed neatly (see the figure below). I think this is also the reason for high production efficiency. The most important thing that is not easy to destroy is the calibration of the light path system, which requires patience. Especially for continuous light source atomic absorption, the requirements for the light path system are higher. The calibration is carried out in a dark room. In order to ensure the accuracy, the company has developed a set of calibration software by itself. However, it still needs to be very patient, and because the intensity of the light source is very high, the calibration needs to wear protective glasses all the time

we then came to the factory inspection workshop. Each instrument needs to be tested by the actual sample. According to the tips of the detection software, complete all tests, and then leave the factory after passing the tests. According to Mr. Tiede, each instrument has its own "code" and file, and various test parameters will be recorded in its "birth file", so that no matter where the instrument is transported, if there is a problem, it can be found out at once when it leaves the factory

we also visited four application laboratories, atomic spectroscopy, molecular spectroscopy, TOC and biochemical instrument laboratory. The main instruments can be seen in the laboratory. The application engineers of Jena company will make samples for users, and can also conduct operation training for users. In particular, we were deeply impressed by the detailed introduction of wittenburg, the product manager of TOC