Zhangjiakou Cigarette Factory Co.

Zhangjiakou, China

Zhangjiakou Cigarette Factory Co.

Zhangjiakou, China
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Liu B.,Hebei University of Science and Technology | Liu B.,R and nter for Fermentation Engineering of Hebei Province | Liu B.,Zhangjiakou Cigarette Factory Co Ltd. | Wang J.,Hebei University of Science and Technology | And 5 more authors.
Journal of Chinese Institute of Food Science and Technology | Year: 2014

To prepare a myclobutanil molecularly imprinted polymer (MMIP) and study its specific recognition ability, MMIP was prepared by the method of bulk polymerization under different ratios between template molecular and functional monomer, using myclobutanil as template molecule, methacrylate acid (MAA) as functional monomer. The influence of different pore-foaming agents on the interaction between template molecular and functional monomer was investigated, the effect of the prepared polymer using different ratios template molecular and functional monomer on the adsorption content of myclobutanil was also studied. Adsorption property of myclobutanil was examined by static adsorption test and analyzed by Scatchard analysis. The results indicated that the maximum absorption wavelength of myclobutanil could produce red shift and the red shifts were 4 nm and 2 nm, respectively, and the absorption intensity increased using acetonitrile and tetrahydrofuran as pore-foaming agent. Through the Scatchard analysis, it showed that myclobutanil template molecule and functional monomer MAA formed one types of binding sites, the dissociation constants of the binding sites was 1.36 mmol/L, respectively. Tetrahydrofuran and acetonitrile were more suitable for the preperation of MMIP. The molecularly imprinted polymer can be used as the separation media of myclobutanil with high affinity and good specific recognition ability. ©, 2014, Chinese Institute of Food Science and Technology. All right reserved.


Li X.,Zhangjiakou Cigarette Factory Co. | Zhang B.,Zhangjiakou Cigarette Factory Co. | Ma Y.,Zhangjiakou Cigarette Factory Co.
Tobacco Science and Technology | Year: 2013

In order to solve the problem of flash break-off of PROFIBUS-DP network in tobacco primary processing line, the structure of the PROFIBUS-DP network in tobacco blending and cutting section was improved as following: inspecting the communication cable shield of PROFIBUS-DP to ensure that it was multipoint earthed; tightening or replacing the terminals in PROFIBUS-DP; normalizing the wiring of PROFIBUS-DP communication cable to reduce mutual interference; dissecting PROFIBUS-DP network with repeaters to reduce the interactions between substations. The results of application showed that after improvement, tobacco blending and cutting section ran stably, the number of PROFIBUS-DP network stoppage reduced from average 3 times/month to 0, the reliability and resistance of the network to disturbance were promoted.


Gao W.,Hebei University of Science and Technology | Gao W.,R& nter for Fermentation Engineering of Hebei Province | Gao L.,Hebei University of Science and Technology | Liu B.,Hebei University of Science and Technology | And 3 more authors.
Journal of Chinese Institute of Food Science and Technology | Year: 2015

To prepare tebuconazole molecularly imprinted polymer, a method was established for the choice of the appropriate functional monomer and its dosage. UV spectra was applied to study the combination form, the effect intensity, the optimal concentration ratio and the numbers of binding sites between tebuconazole and methyl acrylic acid(MAA) or acrylamide(AM) functional monomer. The results showed that hydrogen-bonding interaction could be formed between tebuconazole and methyl acrylic acid (MAA) or acrylamide (AM) functional monomer. The π electron of the tri-azole ring conjugated double bond in tebuconazole could transit to ;Π* conjugate antibonding orbital when it absorbed energy. The formation of hydrogen bond could make Π→Π* absorption band transit. Maximum absorption wavelength produced red shift with the increase of the functional monomer concentration in the system. The research revealed that the optimal molar concentration ratios between tebuconazole and the two monomers were C(M):C(MAA)=1:4, C(M):C(AM)=1:4. Tebuconazole and the both functional monomers had the bonding ability, and strong bonding force. A tebuconazole molecular combined respectively with 3 MAA and 2 AM to form stable coordination compounds. The prepared molecularly imprinted polymer using AM as a functional monomer had better stability and specificity of recognition to tebuconazole. ©, 2015, Chinese Institute of Food Science and Technology. All right reserved.

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