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Orchid Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

Why we use holmium oxide,perchloric acid for uv/vis calibration

4 21982

Why caffeine as a reference standard used for calibration of HPLC?

11 46510

what is relationship between absorption and transmittance in u.v.?

11 24972

Why using Holmium oxide in UV calibration

8 36282

full name of OOS & OOT ? Dercribe it with details ? why this is needed in pharma industry ?

10 30437





what is dead time in hplc?

3 15902

what is the significant of pH in HPlc?

5 11661

Explain about Low pressure gradient and High Pressure gradient systems in HPLC?

4 22319

HPLC Calibration was done in Reverse Phase, but not in normal phase why explain?

11 25658

what are the standard methods for HPLC?

1750

When performing Moisture content how to you say only Methanol react with water not product Explain?

2 8019

what is the meaning of PURITY AND POTENCY .what is the difference between PURITY and POTENCY

5 22950

As per USP what is RSD limit of volumteric solution of three replicate analysis

10 19413

In standard weight box used for calibration of analytical balance there are two numbers (Qty) of 20mg, 200mg,2.oGM weights. Why?

2 12367

How do we fix the sample concentaryion in hplc method development. what is the basis?Thanks in advance

4 15509

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Un-Answered Questions

What is typedf?

116


A FIU19(E) units Flexbus LED is flashing. What is the meaning?

1276


How to design inductive load for 3 phase 440v and maximum 5 amps for star or delta? Can we use a 15kW, 1450rpm motor for 15kW, 960rpm apllication?If yes.how......n.if thesame motor used what`s it`s sideeefect.

1544


Write all combinations of test cases for calculater on + symbel

1253


Python documentation is called?

98






What are the destinations of LIC?

147


Why aggregation cannot be done in Mapper?

34


What does pragma mean?

62


How can you make the sql query to be based on a specific table of your choice?

130


mention if it is possible to import data directly from t-sql commands without using sql server integration services? If yes, what are the commands? : Transact sql

102


Difference between etl and elt components in talend?

1


What is the unix command to confirm a remote host is alive or not?

121


How can one address and manage ip using the ubuntu cloud?

76


A) Which two are benefits of Teradata's support for ANSI Standard SQL? (Choose two.) 1.data is distributed automatically 2.queries get optimized to better plans 3.submit queries from other database systems 4.can interface with BI tools B) Which statement is true when comparing the advantages of third normal form to star schema? 1.Star schema tends to have fewer entities. 2.Star schema requires additional data storage. 3.Third normal form tends to have fewer entities. 4.Third normal form requires additional data storage. C)Which two sets of functions does the Parsing Engine (PE) perform? (Select two.) 1.sorting, formatting, and aggregating of the final answer set 2.flow control of the data to and from the participating tables 3.SQL statement interpretation, syntax validation, and semantic evaluation 4.dispatching the step execution sequence to the AMP via the BYNET D) Which two can be achieved with Teradata Active System Management (TASM)? (Choose two.) 1.disable hardware 2.react to hardware failure 3.influence response times 4.collect metadata E) Which three mechanisms can be used to ensure security within the Teradata Database? (Choose three.) 1.views 2.spool limits 3.roles 4.access rights 5.profiles

5449


What are shares and debentures?

168