The leading products of our Company are para cresol, with an annual output of 8,000 tons; food additives, such as potassium sorbate and sorbic acid, with an annual output of sorbic acid and potassium sorbate 10,000 tons, which occupied in the domestic market; Meanwhile, exported to Europe, the United States, Japan, South Korea and other countries and regions, whose volume accounts for 60% of the total, which has made it an important export-oriented enterprises of Dezhou Area, and also, has become the world's production base of para cresol and an important production base of sorbic acid and potassium sorbate domestically .

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Eight phenolic acids in Satsuma mandarin during maturity were determined by high-performance liquid chromatography coupled with photodiode array detector in this study, which were:protocatechuic, p-hydroxybenzoic, vanillic, caffeic, p-coumaric, ferulic, sinapic and chlorogenic.

采用HPLC-PDA測定了不同成熟期溫州蜜桔中八種酚酸的含量亚洲国品网站，即綠原酸男人女人猛烈无遮挡免费视频、咖啡酸、對香豆酸欧美XXXXX性交、阿魏酸久久99精品久久久久久久旧本、芥子酸、原兒茶酸caopeng碰公开在线视频、對羥基苯甲酸和香草酸囯产精品免费久久久精品。

The important role of hydroxycinnamic acids,i.e.,caffeic acid, chlorogenic acid,sinapic acid,ferulic acid,3-hydroxycinnamic acid (3-HCA) and 4-hydroxycinnamic acid(4-HCA) as the pBR322 plasmid DNA-Cleaving agents in the presence of Cu ions was investigated.

我們研究了羥基肉桂酸衍生物即咖啡酸、綠原酸悠色视频更新在线观看、芥子酸免费看18禁止观看黄网站湖南、阿魏酸、3-羥基肉桂酸(3-HCA)和4-羥基肉桂酸(4-HCA)在Cu存在下誘導(dǎo)pBR322質(zhì)粒DNA鏈斷裂損傷情況人人操人人爽c，結(jié)果發(fā)現(xiàn)HCAs的促氧化活性與它們的分子結(jié)構(gòu)有密切的關(guān)系干中文字幕，具有鄰二羥基結(jié)構(gòu)和鄰二甲氧基羥基結(jié)構(gòu)的化合物表現(xiàn)出了更高的促氧化活性，其中CaA的活性最高国产夫妻欧美日韩视频。

Producing Creatin monohydrate, Ctreatine anhydrous, Taurine, Tri-Craetine citrate, Tricreatine Malate, Creatine Ethyl ester Glycocyamine, Guanidino propionic acid, etc.

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The classification of acidification indices about the tested the litchi orchard soil: the first class was soil intensity index of exchangeable aciditypH(KCl, exchangeable acidity, exchangeable aluminium, titratable acidity, actual acidification velocity , cation exchange capacity or electrical conductivity; the second class was soil exchangeable Ca2+, total base or base saturation percentage; The third class was soil intensity index of active aciditypH

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Thirdly, the acrylic rosin was synthesized by the addition reaction from gum rosin andacrylic acid. The levo-pimaric acid was converted into acrylic pimarie acid throughDiels-Alder addition with acrylic acid. The abietic-type acids in the gum rosin were inisomerization balance under high temperature, and the abietic acid and palstric acid would beconverted into levo-pimaric acid and reacted in the later type.

第三人人干人人射人人草，通過脂松香與丙烯酸加成合成了丙烯酸松香婷婷色图区，該反應(yīng)是左旋海松酸與丙烯酸發(fā)生Diels-Alder加成反應(yīng)生成丙烯海松酸，由于脂松香中的樅酸型樹脂酸在高溫下處于異構(gòu)化平衡狀態(tài)91人人妻人人做人人爽男同，因此隨著反應(yīng)的進(jìn)行樅酸国产激情综合小说、長葉松酸等會(huì)異構(gòu)化為左旋海松酸參與反應(yīng)。

Results: Good linearity was observed in 6～1512μmol.L-1 range for phenylalanine, the intra-run and inter-run imprecisions w ere 3.68%and 4.01%, the recovery rate was 98.6%; good linearity was observed in 5.4 ～1380.0μmol.L-1 range for tyrosine, the intra-run and inter-run i mp recisions were 1.87%and 2.59%, the average recovery rate was 98.9%.

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The effects and mechanism of GABAergic neurons, NOergic neurons, opioid peptide and cyclic adenosine monophosphate in the nucleus reticularis thalami on sleep-wakefulness cycle of rats and the effects and mechanism of the 5-HTergic nerve fibers project from the nucleus raphes dorsalis to RT on sleep-wakefulness cycle of rats were investigated with the methods of brain stereotaxic, nucleus spile, microinjection and polysomngraphy.1. The effects of GABAergic neurons in RT on sleep-wakefulness cycle of rats1.1 Microinjection of 3-mercaptopropionic acid (3-MP, a kind of glutamate decarboxylase inhibitor) into RT. On the day of microinjection, sleep only decreased a litter. On the second day, sleep marked decreased and wakefulness marked increased. On the third and fourth day, sleep and wakefulness stages resumed to normal.1.2 Microinjection of gamma-amino butyric acid (GABA 1.0μg) into RT enhanced sleep and reduced wakefulness compared with control; while microinjection of L-glutamate (L-Glu, 0.2μg) decreased sleep and increased wakefulness; microinjection of bicuculline (BIC, 1.0μg), a GABAA receptor antagonist, enhanced wakefulness and reduced sleep; microinjection of baclofen (BAC, 1.0μg), GABAB receptor agonist, had the same effects as GABA.2. The effects of NOergic neurons in RT on sleep-wakefulness cycle of rats2.1 Microinjection of L-arginine (L-Arg, 0.5μg) into RT decreased sleep compared with control, but there were on statistaical difference between L-Arg group and control; while microinjection of sodium nitroprusside (SNP, 0.2μg), a NO donor into RT, sleep marked decreased and wakefulness marked increased. Microinjection of nitric oxide synthase inhibitor, N-nitro-L-arginine (L-NNA, 2.0μg) into RT enhanced sleep and reduced wakefulness.2.2 After simultaneous microinjection of L-NNA (2.0μg) and SNP (0.2μg) into RT, SNP abolished the sleep-promoting effect of L-NNA compared with L-NNA group; after simultaneous microinjection of L-NNA (2.0μg) and L-Arg(0.5μg) into RT, we found that L-NNA could not blocked the wakefulness-promoting effect of L-Arg.3. The effects of opioid peptide in RT on sleep-wakefulness cycle of rats3.1 Microinjection of morphine sulfate (MOR, 1.0μg) into RT increased wakefulness and decreased sleep compared with control; while microinjection of naloxone hydrochloride (NAL, 1.0μg), the antagonist of opiate receptors, into RT, enhanced sleep and reduced wakefulness.3.2 After simultaneous microinjection of MOR (1.0μg) and NAL (1.0μg) into RT, the wakefulness-promoting effect of MOR and the sleep-promoting effect of NAL were not observed compared with control.4. The effects of cAMP in RT on sleep-wakefulness cycle of rats Microinjection of cAMP (1.0μg) into RT increased sleep and decreased wakefulness compared with control; microinjection of methylene blue (MB,1.0μg) into RT enhanced sleep and reduced wakefulness compared with control.5. The effects of the 5-HTergic nerve fibers project from DRN to RT on sleep-wakefulness cycle of rats5.1 When L-Glu (0.2μg) was microinjected into DRN and normal sodium (NS,1.0μg) was microinjected into bilateral RT. We found that sleep was decreased and wakefulness was increased compared with control; when L-Glu (0.2μg) was microinjected into DRN and methysergide (MS,1.0μg), a non-selective 5-HT antagonist, was microinjected into bilateral RT, We found that sleep was enhanced and wakefulness was reduced compared with L-Glu group.5.2 When p-chlorophenylalanine (PCPA, 10μg) was microinjected into DRN and NS (1.0μg) was microinjected into bilateral RT, We found that sleep was increased and wakefulness was decreased compared with control; microinjection of 5-hydroxytryptaphan (5-HTP, 1.0μg), which can convert to 5-HT by the enzyme tryptophane hydroxylase and enhance 5-HT into bilateral RT, could block the effect of microinjection of PCPA into DRN on sleep-wakefulness cycle.

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The article fully introduces the current situation of development and usage of downstream products of DSD Acidg intermediates which are OBA,Direct Dyes,Acid Dyes,and Active Dyes.

DSD酸及合成DSD酸過程中的中間過渡產(chǎn)物NTS酸、DNS酸和DNS酸單還原的產(chǎn)物ANSD酸亚洲精品专区999，這四種化合物統(tǒng)稱DSD酸系列中間體日韩午夜在线试看网站视频，它們是重要的有機(jī)化工原料。

The main component dehydroabietic acid and little component abietic acid, neoabietic acid, levopimaric acid and pulustic acid of a few types disproportionated rosin were determinated quantitatively by selecting the proper order of derivative, differential wavelength difference, scanning rate and quantitative method.

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