Environmental Express® Color-Coded Surrogates

Prevent costly mistakes by color coding your extraction fluids
  • Ideal for semi-volatile extractions like EPA Methods 3500C, 625, and 8270
  • Simply add 1 mL of the methanol based indicator to your sample
  • Store in your lab refrigerator
Color coded surrogates are methanol based and supplied in 25mL volumes in screw-top vials — add 1 mL to your sample and help avoid performing re-extractions. These surrogates act as an indicator to ensure the pH range of the sample is correct.
$28.25 - $53.63USD / Each

14 variations of this product are available.

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14 PRODUCT OPTIONS
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Volume (mL) Description
Availability Pricing
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25 Color-Coded Surrogate, Base Neutral/Acid (100:100); 25 mL
$48.54USD / Each
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25 Color-Coded Surrogate, Base Neutral/Acid (100:150) for CLP; 25 mL
$48.54USD / Each
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25 Color-Coded Surrogate, Base Neutral/Acid (100:100), for CLP; 25 mL
$53.63USD / Each
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25 Color-Coded Surrogate, Base Neutral/Acid (100:150); 25 mL
$47.17USD / Each
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25 Color-Coded Surrogate, Base Neutral/Acid (100:200); 25 mL
$47.17USD / Each
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25 Color-Coded Surrogate, Base Neutral/Acid (50:50) for CLP; 25 mL
$53.63USD / Each
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25 Color-Coded Surrogate, Base Neutral/Acid (150:75) for CLP; 25 mL
$53.63USD / Each
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25 Color-Coded Surrogate, Base Neutral/Acid (50:100); 25 mL
$47.17USD / Each
COMPARE
25 Color-Coded Surrogate, Base Neutral/Acid (50:100) for CLP; 25 mL
$53.63USD / Each
COMPARE
25 Color-Coded Surrogate, Base Neutral/Acid (80:80); 25 mL
$47.17USD / Each
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25 Color-Coded Surrogate, Acid (100 ug); 25 mL
$28.25USD / Each
COMPARE
25 Color-Coded Surrogate, Acid Indicator (200 ug); 25 mL
$38.17USD / Each
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25 Color-Coded Surrogate, Base Neutral (100ug); 25 mL
$28.25USD / Each
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25 Color-Coded Surrogate, Base Neutral (50ug); 25 mL
$35.92USD / Each
Showing 1- 14 of 14

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