QuizMaster, Author at AnsweringExams.Com

Column bleeding occurs when

July 25, 2022 by QuizMaster

Question: Column bleeding occurs when
[A].

elution of the analyte is extended over time

[B].

the column is cracked and stationary phase leaks out

[C].

traces of the stationary phase are eluted

[D].

the column breaks during installation and causes personal injury

Answer: Option C

Explanation:

No answer description available for this question.

A retention gap is placed between the injector and the front of the column to

July 25, 2022 by QuizMaster

Question: A retention gap is placed between the injector and the front of the column to
[A].

retain contaminants and prevent them from reaching the column

[B].

retain the sample and release it gradually to the column

[C].

prevent backflush of the injected solution

[D].

all of the above

Answer: Option A

Explanation:

No answer description available for this question.

Helium is generally preferred as carrier gas over nitrogen and hydrogen because

July 25, 2022 by QuizMaster

Question: Helium is generally preferred as carrier gas over nitrogen and hydrogen because
[A].

it is inert

[B].

it has a lower viscosity

[C].

it doubles up as a party gas for balloons and funny voices

[D].

all of above

Answer: Option D

Explanation:

No answer description available for this question.

BUSY

July 25, 2022 by QuizMaster

Question: BUSY
[A].

Occupied

[B].

Engrossed

[C].

Relaxed

[D].

Engaged

Answer: Option C

Explanation:

No answer description available for this question.

Doubling the column’s length increases resolution by a factor of

July 25, 2022 by QuizMaster

Question: Doubling the column’s length increases resolution by a factor of
[A].

(2)0.5

[B].

[C].

[D].

Answer: Option A

Explanation:

No answer description available for this question.

Negative staining is a technique used in

July 25, 2022 by QuizMaster

Question: Negative staining is a technique used in
[A].

electron microscopy

[B].

gel electrophoresis

[C].

immunocytochemistry

[D].

light microscopy

Answer: Option A

Explanation:

No answer description available for this question.

Parts : Strap :: Wolf : ?

July 25, 2022 by QuizMaster

Question: Parts : Strap :: Wolf : ?
[A].

Fox

[B].

Animal

[C].

Wood

[D].

Flow

Answer: Option D

Explanation:

Cytochrome C has an isoelectric pH of

July 25, 2022 by QuizMaster

Question: Cytochrome C has an isoelectric pH of
[A].

8.5

[B].

10.05

[C].

7.5

[D].

11.05

Answer: Option B

Explanation:

No answer description available for this question.

In scanning electron microscopy

July 25, 2022 by QuizMaster

Question: In scanning electron microscopy
[A].

a specimen is fixed and then coated with thin layer of a heavy metal

[B].

a specimen is fixed and then coated with transition metal

[C].

a specimen is not fixed and then coated with thin layer of a heavy metal

[D].

none of the above

Answer: Option A

Explanation:

No answer description available for this question.

In immunofluroscence microscopy, fluroscent compounds are attached to

July 25, 2022 by QuizMaster

Question: In immunofluroscence microscopy, fluroscent compounds are attached to
[A].

an antibody specific for the subcellular structure

[B].

an antigen specific for the subcellular structure

[C].

bound antibody specific for the subcellular structure

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.