isobutyl 中文意思是什麼

The synthesis methods of isobutyl acetate catalyzed by p - toluene sulfonic acid, amino sulfonic acid, strongly acidic cationic exchange resin, ferric chloride hexahydrate, cupric chloride bi - hydrate, stannic chloride pentahydrate, ammonium ferric sulfate dodecahydrate, sodium bisulfate monohydrate, potassium bisulfate, chitosan sulfate, sodium dihydrogen phosphate, rare earth metallic oxide, solid super acid, heteropoly acid and molecular sieve etal were reviewed

摘要評述了對甲苯磺酸、氨基磺酸、強酸性陽離子交換樹脂、六水三氯化鐵、二水氯化銅、五水四氯化錫、十二水合硫酸鐵銨、一水硫酸氫鈉、硫酸氫鉀、殼聚糖硫酸鹽、磷酸二氫鈉、稀土金屬氧化物、固體超強酸、雜多酸和分子篩等催化劑催化合成乙酸異丁酯的方法。

A solid superacid zro2 - so2 - 4 catalysis synthesized isobutyl butyrate

4催化合成丁酸異丁酯

Methyl isobutyl carbinol

甲基異丁基甲醇

Isobutyl benzyl carbinol

異丙基芐醇

Rat cumulus - enclosed oocyte ( ceo ) and denuded oocyte ( do ) both spontaneously resume meiotic maturation in vitro, when cultured for 2h, the germinal vesical breakdown percentage of do reaches up to 88 %, and ceos get 53 %. oocytes begin to extrude first polar body 1 ( fb1 ) when cultured for 8h. mouse oocyte spontaneous maturation in vitro can be inhibited by 4mm hypoxanthine ( hx ) or 25um 3 - isobutyl - methylxanthine ( ibmx ). while, 4mm hx can not inhibit the spontaneous maturation of rat oocyte, and the lowest effective concentration of ibmx to inhibit rat oocyle spontaneous maturation in vitro is 50um. treated with the same concentration of ibmx, gvbd percentage of rat ceo is lower than that of do, the results indicat that cumulus cells delay rat oocyte spontaneous maturation and potentate the inhibition effect of ibmx, but it ' s not the case on mouse

Ceo和do培養8h時都開始排出pb1 ；在卵母細胞成熟抑制模型中， 4mm次黃嘌呤（ hx ）和25 m的異丁基甲基黃嘌呤（ ibmx ）是小鼠卵母細胞成熟的有效抑制劑，但4mm的hx抑制大鼠卵母細胞成熟效果不理想，用hx - m199和hx - mem培養24h ， gvbd率分別為61 ， 81 ，而ibmx有效抑制大鼠卵母細胞自發成熟的最小濃度為50 m ， ibmx可以降低大鼠ceo和do的gvbd率，但ceo中的卵母細胞gvbd率要顯著低於do的gvbd率， 100 m的jbmx處理24h后，大鼠ceo和do的gvbd率分別為24 ， 84 ，提示卵丘細胞的存在可以延遲大鼠卵母細胞的自發成熟，有助於抑制卵母細胞成熟，但在小鼠上ceo和do的自發成熟差異不明顯。

Standard specification for methyl isobutyl ketone

甲基異丁基甲酮的標準規范

Sodium potassium isobutyl xanthate

異丁基鈉

Methods for chemical analysis of copper - chromium - zirconium alloys. the determination of silicon of silicomoly benum blue photometric method after extraction with methyl isobutyl ketone

銅鉻鋯合金化學分析方法.甲基異丁基酮萃取?鉬藍光度法測定硅

Study on alcoholysis of vegetable oil with isobutyl alcohol

異丁醇醇解植物油的研究

The analysis results of gas chromatography showed that the isolates could metabolize isobutyl acetate to produce iso - butanol and butyric acid

氣相色譜的分析結果表明，該菌可降解醋酸異丁酯生成異丁醇和異丁酸。

Phase states and catalytic activities of catalytic system with fecl3 - al isobutyl 3 - phenanthroline

鄰菲羅啉催化體系的相態和催化活性

When butyl acetate and isobutyl acetate were selected as entrainer, tower bottom production contained entrainer, with the further decrease of the ratio of water to entrainer

進料處于最佳進料位置時，分離效果最好。隨著進料位置從最佳進料位置上移或下降，分離效果降低。

Pvi poly vinyl isobutyl ether

聚乙烯基異丁基醚

Chemical analysis methods for acid slay of cupola. determination of phosphorus pentoxide by extraction molybdophosphate yellow using methyl isobutyl ketone spectrophotometic method of vanadium

鑄造化鐵爐酸性爐渣化學分析方法.磷釩鉬黃-甲基異丁基甲酮萃取光度法測定五氧化二磷量

By inducing 3t3 - l1 preadipocyte with individual hormone, it was identified that the mitotic clonal expansion was induced only by insulin, not by 1 - isobutyl - 3 - methylxanthine or dexamethasone

有報道用藥物抑制了克隆擴增的同時抑制了細胞的分化。我們發現克隆擴增是僅由胰島素誘導引起的。

Upon the differentiation induction of 3t3 - l1 preadipocytes by hormone cocktail containing 1 - isobutyl - 3 - methylxanthine, dexamethasone and insulin, the preadipocytes undergo ~ 2 rounds of mitotic clonal expansion, which just precedes the adipogenic gene expression program and has been thought to be an essential early step for differentiation initiation

誘導分化的早期細胞會進行約兩輪的細胞分裂，被稱為克隆擴增。克隆擴增以前一直被認為可能有利於染色體的重構以易化分化所需要的基因表達，因此克隆擴增可能是3t3 l1前脂肪細胞分化所必需的過程。

However, significant fraction of 3t3 - l1 preadipocytes differentiated into adipocytes without the mitotic clonal expansion when the preadipocytes were induced with the combination of 1 - isobutyl - 3 - methylxanthine and dexamethasone

用地塞米松和ibmx對細胞進行誘導不發生克隆擴增，而細胞也能部分分化，分化形成的脂肪細胞未經過dna復制。

Specification for 4 - methylpentan - 2 - one isobutyl methyl ketone for industrial use

工業用4甲基- 2 -戊酮

Methyl isobutyl ketone

甲基異丁酮

Standard test method for purity of methyl isobutyl ketone by gas chromatography

氣相色譜法測定甲基異丁基酮純度的標準試驗方法