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• Intended Use: DNase Test Agar is used for the differentiation of microorganisms on the basis of deoxyribonuclease activity.
• Product Summary: In 1956, Weckman and Catlin showed a correlation between increased DNase activity of Staphylococcus
aureus and positive coagulase activity. Their research suggested DNase activity could be used to identify potentially pathogenic
staphylococci. DiSalvo confirmed their results by obtaining excellent correlation between coagulase and DNase activity of
staphylococci isolated from clinical specimens. Jeffries, Holtman, and Guse incorporated DNA in agar to study DNase production
by bacteria and fungi. Polymerized DNA precipitates in the presence of 1N HCl, creating an opaque medium. Organisms that
degrade DNA produce a clear zone around an inoculum streak. Fusillo and Weiss studied calcium requirements of staphylococci
for DNase production, and concluded additional calcium was unnecessary when a complete nutritive medium was used.
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Spectrum Chemical Mfg. Corp. offers a flat fee shipping when items are shipped “directly from Spectrum warehouses” by regular UPS ground within the contiguous United States. There are some additional charges that are item specific. Not included are any expedited or LTL shipments or dIrect shipped items from Spectrum vendors or manufacturers which are charged at published carrier rates.
|Order Sub-Total||Shipping Charge|
|$0 - <$299.99||$19.25|
|$300 - <$499.99||$32.50|
|$500 - <$999.99||$44.75|
|Additional Charge Items||Shipping Charge|
|Hazard Charge - Ground||$33.00 per box|
|Hazard Charge - Air||$46.50 per box|
|Poison Pack Charge (Small)||$15.00 per box|
|Poison Pack Charge (Large)||$25.00 per box|
|Ice Pack Charge (Small)||$10.00 per box|
|Ice Pack Charge (Large)||$15.00 per box|
|Pallet Charge (Wood Pallet)||$25.00 per box|
|Pallet Charge (Plastic Pallet)||$40.00 per box|
|Fuel Surcharge (<$400 subtotal)||$5.85|
|Fuel Surcharge (>$400 subtotal)||$10.55|
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