戊酸

Generally, its difficult to determin VPA in serum with HPLC because VPA lacks nitrogen and a ring moiety and therefore has no chromophoric characteristics.

丙戊酸缺乏氮和共轭环，因此紫外吸收弱，一般HPLC法难以实现。

The sodium dithiobenzoic acid was oxidized with potassium ferricyanide to obtain di disulfide.The influences of raw materials mole ratio,stirring method and reaction time on the yield were studied with orthogonal test.

用铁氰化钾溶液氧化二硫代苯甲酸钠，得双二硫代苯甲酰，采用正交实验探讨了4，4'-偶氮双(4-氰基戊酸)与双二硫代苯甲酰反应的投料比、搅拌方式、反应时间对反应收率的影响。

Inna Vaisleib, a pediatric neurologist and epileptologist at Children's Hospital of Pittsburgh.

Inna Vaisleib 说：研究留下的信息是神经损伤的危险是伴随着丙戊酸的使用

For the test of such mechanism,we have measured the solubilities of n-valeric acid at 25℃in the aqueous solutions of following five cobalt ammines:(1) luteo,(2) purpuro,(3) xantho,(4) croceo and (5) flavo.

根据这样的机构，我们在25°下测了在下面五种钴络盐水溶液中正戊酸的溶度：(1)氯化六氨基钴；(2)氯化一氯五氨基钴；(3)氯化一硝基五氨基钴；(4)氯化反二硝基四氨基钴；(5)氯化顺二硝基四氨基钴。

Under this conditions,the conversion rate of isovaleric acid was up to 96.9%.

此条件下异戊酸转化率达96.9%。

The results show that solid superacid catalysts have higher activities,reaction time being short,higher conversion rate of isovaleric acid.

结果表明：此法催化剂用量少、催化活性高、反应时间较短、异戊酸转化率高、工艺简单、在一定条件下催化剂可以重复使用多次。

GDNF may be related to the mechanism of neuronic injury and repairment. Protective effects of VPA may be involve in increasing expression of GDNF.

帕金森病小鼠神经元内GDNF含量增多，可能有利于受损神经元的修复；丙戊酸盐可能通过促进GDNF的表达而保护神经元。

Diphenolic acid;DPA;4,4-bis(4-hydroxyphenyl) pentanoic acid;4-bydroxy-γ-(4-hydroxyphenyl)benzenebutanoic acid

学名 4，4-双（4-羟苯基）戊酸。从水中析出晶体。工业品为淡棕褐色颗粒。

Objective To investigate the effect and safety of photodynamic therapy with topical aminolevulinic acid in moderate to severe acne.

目的 探索5-氨基酮戊酸光动力疗法治疗中、重度痤疮的安全性及有效性。

Objective To study the optimal irradiation time and power density in photodynamic therapy with delta-aminolevulinic acid for tumor cells photoinactivation in vitro.

目的 探讨5-氨基酮戊酸光动力学疗法体外伤杀肿瘤细胞的最佳照光时机和最佳照光能量。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。