Posts: 21
From:Pune, India
Registered: Mar 2000

posted 24 May 2001 01:09 AM               

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Can someone provide any pointers to what statistical techniques are used in chemical / pharma industries for both batch and continuous processing? Is there anything different?

Thanx

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Posts: 4119
From:West Chester, OH, USA
Registered:

posted 03 June 2001 04:33 PM               

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There is a difference but I admit I cannot explain details.

I remember back about 5 years ago this came up with a client. There was a difference in how they chose samples among othe things. Sorry I can't help personally. Maybe a CQE here can help.

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Posts: 17
From:Chennai, tamilnadu, India
Registered: Jun 2001

posted 04 June 2001 07:18 AM               

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I was with pharma industry for a brief period.
In batch process each batch is identified bya separate tag and identified at the end in terms of yield, purity and overall quality of the product.
In case of continuous process the output of one step is the input for another and as such samples are withdrawn and checked and sampling technique is used based on the quantity of the material involved.

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