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The 2015 Chinese Pharmacopoeia draft
On March 28, 2014, the official website of the State Pharmacopoeia Commission published a notice on the public solicitation of opinions on the “General Amendments to the 2015 Pharmacopoeia†(Draft). According to the notification, the relevant professional committees of the Nati
Read TutorialHigh performance liquid chromatography
The study pointed out that the HPLC method is simple, accurate, and reproducible, and is suitable for the quality control of health foods containing puerarin, daidzin, daidzein and genistein. Phenomenex Luna C18 column (250mm×4.60mm, 5μm) was used. Methanol-0.1% trifluoroacetic aci
Read TutorialPrinciple Analysis of Spray Painting in Automobile Painting Process
1. Check tools and working environment before painting The moisture in the air compressor must be released first. Thoroughly clean and inspect spray booths and ventilation screens. Clean spray paint floor. 2. The surface is clean Spray surface must be washed with water, there are oils, wax to
Read TutorialStrictly enforce regulations and reduce illegal activities
One of the news that received particular attention at the beginning of last year (2013) was the official implementation of "the strictest new rules in history." Among them, more stringent regulations have been imposed on the application for driver's license exams, driver and
Read TutorialZhuzhou auto parts assembly project starts a total investment of 3 billion
Recently, Shanghai Zhongli Investment Management Co., Ltd. and Taiwan Tianzi International Investment Group Co., Ltd. invested a total of RMB 3 billion in auto parts assembly projects and started construction in the Zhangzhou Economic Development Zone. It is reported that Shanghai Neutral I
Read TutorialLocalization of hydraulic retarders alleviates the worries of truck ramps
With the rapid development of the transportation industry, trucks are being loaded with more and more load pressures, and braking performance cannot be synchronized at the moment. Especially when driving on mountainous roads, especially on slopes, even seasoned old drivers have to be cautious and
Read Tutorial·Shanghai New Energy Vehicle Local Subsidy has not implemented the mechanism of declining
Buying pure electric passenger cars or plug-in hybrid passenger cars (including extended programs) in Shanghai, in addition to the central financial subsidies, can also enjoy the Shanghai financial subsidies of 40,000 yuan or 30,000 yuan per vehicle. Shanghai officially announced this information o
Read TutorialChengdu Chemical Industry Association to Participate in the September Chemical Industry Exhibition in Chengdu West
Organizing Committee News: The 8th Western China (Chengdu) International Chemical Technology Equipment Exhibition will be held on September 25-27, 2014 at the New International Convention and Exhibition Center in Chengdu Century City. Chengdu Chemical Industry Association will participate in co-ho
Read TutorialTalking about the difference between LED lighting and ordinary lighting
First of all, unlike ordinary fluorescent lamps, LED fluorescent lamps and traditional fluorescent lamps are the same in outer dimensions. The lengths are 60cm, 120cm and 150cm. The power is 10W, 16W and 20W, respectively. The 20W traditional fluorescent lamp (inductive ballast) The practical power
Read TutorialFour tools to test the speed difference of 8 times the speed of a tricky
Concerned about broadband Internet speed is not standard unconditional payment is accused of gimmicks Beijing Unicom has recently launched an unconditional broadband broadband rate non-payment, but the move also led to a lot of controversy, many users think this is just a gimmick, the operator&#
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