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<v ->I am Theresa Moe, I am a product chemistry manager</v>

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and analytical team leader at Dow AgroSciences.

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I actually have two roles and the first part

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is the product chemistry manager,

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and in that role we do the physical property testing

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on our active ingredients

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as well as our formulated products.

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So, what's actually sprayed on the field.

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When I say physical property testing,

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that can be as simple as color and odor

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and it can be more complex as UV VIS,

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water solubility, studies like that.

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So those studies will go onto our SDS

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as well as in our package

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that's submitted for regulatory submission

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in addition to the physical property studies

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we'll also develop and validate methods used

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to analyze for active ingredients

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in our formulated products,

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and then we'll develop and validate methods

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to use for our impurities in our active ingredients.

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Typically we would use HPLC and GC for that type of work.

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That all goes into the registration package as well,

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and then the third part of my job then would be

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what we call a batch analysis study.

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So we'll take five different vats of our active ingredients,

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analyze it for anything that could possibly be in there,

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inorganics, processed related impurities,

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residual solvents, things like that,

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and we'll develop an impurity profile.

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Then based on that impurity profile,

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we'll set the maximum limit for our impurities

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in each of the active ingredients

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and that's why our manufacturing plants

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we'll use to release product.

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So we always have to be

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in compliance with our impurity profile.