用戶【蔬菜狗狗】點評問題和點評內容

【評論主題】63 下列質譜(MS)的離子化方法中,何者最適合用於LC-MS?(A) Chemical Ionization (B) Electron Impact (C) Electrospray Ionizat

【評論內容】Pharmaceutical analysis 4ed p201:“ESI began to be popularized around 20 years ago and has revolutionized the applicability of MS .....看完整詳解

【評論主題】48 下列質譜(MS)的離子化方法中,何者最適合用於 GC-MS?(A) Electron impact (B) Electrospray ionization(C) Fast atom bombar

【評論內容】Pharmaceutical analysis 4ed p227“The ionization techn.....看完整詳解

【評論主題】76.下列各項併用藥品與其相關副作用的配對中,何者最不可能發生?(A)lisinopril+trichlormethiazide:導致hypotension(B)verapamil+digoxin:增

【評論內容】

Cimetidine 抑制 Warfarin 代謝,使 Warfarin 血中濃度,增加出血風險

【評論主題】58.Arylamine轉變成arylnitrenium ion之致癌性物質,與下列那個Phase II代謝反應比較無關?(A)glucuronidation(B)sulfonation(C)acet

【評論內容】

(A) Foye 149

"The induction of bladder carcinogensis by aromatic amines can result from the O-glucuronidation of the N-hydroxylarylamine. These O-glucuronides become concentrated in the urine where they are either hydrolyzed by the acid pH of the urine to produce N-hydroxyarylamine or eliminate water from the N-hydroxyarylamine under these acidic conditions to yield the formation of an electrophilic arylnitrenium species (5 in figure)

(C) Foye p152

"the tumorigenic activity of arylamines (1 in figure) can be the result of a complex series of sequential metabolic reactions commencing with N-acet...

【評論主題】18.對於藥物之pH值與Ka值的敘述,何者錯誤?(A)酸的Ka值與其共軛鹼的Kb值相減等於Kw(B)水溶液的pKw = pH+pOH(C)乙酸緩衝液在[CH3COOH] = [CH3COO-]時,緩衝

【評論內容】

pH=pKa+log [A-]/[HA]

緩衝液中 [A-]/[HA] 會影響溶液的 pH

最好的緩衝液就是 pH 維持恆定,為了使 pH 不改變 

在 [A-] = [HA] 時,[A-]/[HA] = 1,log [A-]/[HA] = 0

pH = pKa

reference:Chemical Principles by Steven S. Zumdahl

【評論主題】31.下列何種粉碎機器,一般得到之粒子較大?(A)Roller mill (B)Ball mill (C)Fluid-energy mill (D)Colloid mill

【評論內容】

Remington 22ed chapter: powder

1. Coarse:jaw, roll, gyratory, impact crusher  1.6~60 inches

2. Intermediate grinders : rotary cutters, disk, roller, hammer, chaser mills 20~200 meshes

3. Fine grinding mills:fluid energy mills, ball, colloid, rod, hammer,

high speed mechanical screen, centrifugal classifier 200 meshes

【評論主題】36.下列何藥之乾粉注射劑,不含任何添加物?(A)Penicillin G potassium (B)Ampicillin sodium (C)Erythromycin lactobionate (D

【評論內容】

Ansel's Pharmaceutical Dosage Forms and Drug Delivery System

不含添加物

含添加物

【評論主題】69 已知某藥在人體內之動態遵循線性的一室模式且其排除半衰期為 6.93 hr,當以 250 mL 水吞服 200 mg 之藥品後,在 2 hr 其吸收速率為 100 mg/hr,而此時藥品到達其最高

【評論內容】

根據 Applied Biopharmaceutics and Pharmacokinetics, 7th Edition 第 184 頁,零階次吸收 一階次排除

使用 (8.7) 公式,在最高血漿濃度時,dD/dt 為零,因此 ko = kD,得出 drug in body = 999.8 mg

再將藥物量除血中濃度得出分佈體積 19.99 L

此解法矛盾的地方:劑量為 200 mg,但算出藥物在體中的量卻是 999.8 mg

【評論主題】63 下列質譜(MS)的離子化方法中,何者最適合用於LC-MS?(A) Chemical Ionization (B) Electron Impact (C) Electrospray Ionizat

【評論內容】

Pharmaceutical analysis 4ed p201:

“ESI began to be popularized around 20 years ago and has revolutionized the applicability of MS as an analytical tool. Thus ESI is now the most widely applied method of ionization because of its ready compatibility with HPLC.”

【評論主題】48 下列質譜(MS)的離子化方法中,何者最適合用於 GC-MS?(A) Electron impact (B) Electrospray ionization(C) Fast atom bombar

【評論內容】

Pharmaceutical analysis 4ed p227

“The ionization technique most commonly used in conjugation with GC is EI”