First of all, we analyze the main functions of the domestic gas chromatograph and the imported gas chromatograph. This is the answer given by Shandong Luchuang Analytical Instrument Co., Ltd. according to the colleagues in the chromatographic community. Frozen Fish,Frozen Bonito Tuna,Frozen Mackerel Fish,Fresh Frozen Mackerel Fish ZHEJIANG RETRONX FOODSTUFF INDUSTRY CO.,LTD , https://www.retronxfoods.com
    First, the difference in instrument stability:
The technical level of domestic gas chromatographs has been greatly developed. Some products can compete with similar foreign products, and some of the performances are still at the leading level, only a few in computer counter-control. However, this shortcoming is about to break. Lu Chuang's GC-9860plus networked gas chromatograph is a new generation of anti-control function. The stability of the instruments produced by some domestic manufacturers is not good, because the temperature control system and the flow control system are not accurate. Imported instruments are generally used for one year without problems. And if the domestically produced instruments are imitation of imported brands with good stability, the stability is also quite good.
Imported gas chromatographs are not all good, each chromatogram has different degrees of problems, HP and Shimadzu chromatography account for a large proportion of imported chromatography, but their instruments are also problematic, HP (Agilent) The FID detector is not ideal in structure, and water accumulation, difficult ignition, and excessive base flow of the detector often occur. Shimadzu Chromatography has an excessively large dead volume on the gas path design.
    Second, the instrument price, accessories price comparison:
   Imported gas chromatograph general price of 10 million or more, there may be configured hundreds of thousands, millions. Domestic general-purpose gas chromatograph mainframes are generally between 40,000 and 60,000, and about 300,000 helium ion detectors. The price of the accessories during the maintenance of the instrument is also a factor to be considered, and the relative price of the imported accessories is much higher.  The price of imported instruments is expensive, of course, the quality is guaranteed, and many functions are upgraded. However, if you are a company, the analysis conditions are fixed, and it is not necessary to buy an instrument with too high automation level. As a result, many functions are not used, which is equivalent to spending money. Many domestic universities, research and development offices and enterprises use domestic gas chromatographs.
   Third, after-sales, training comparison:
    The general instrument warranty is one year, and after one year, the chromatographic operators have a headache and rushed to make a phone call. The price of imported instruments is several times or even ten times that of domestic ones, and the maintenance cost after the warranty period is very high. Many imported instruments come to the end of the warranty period, because many of the precision parts used for automated control have to be changed at that time, and it is very inconvenient. Domestic manufacturers are relatively good at cost-effective maintenance, and home repair is relatively convenient.  In addition, the general manufacturers will organize dealers, users to learn the relevant knowledge of the instrument, and train the operation of the chromatograph. It’s just that if the manufacturer is in your local area, it will be more convenient for you to go to the training, study and go to the factory for a field trip.
   In summary, it can be seen that no one in domestic or imported instruments has an absolute advantage. Then, if you want to choose domestically produced instruments, how do you choose from many domestic manufacturers? Before we Zhuo Lu Chong analyze "how to choose a cost-effective GC", from the perspective of procurement lists all over the country most of the gas chromatograph manufacturer, but we believe that Lu Chong analysis for own use Gas chromatography is cost-effective, and you don't have to pursue the "high on" instrument. As the top ten brand of domestic chromatographs - Luchuang is your trustworthy.