James N. Huckins; Jim D. Petty; Kees Booij· ISBN 9780387354149
Special offer terms
Zookal Study Premium
Subscribe & save
By selecting the 'Susbcribe & Save' option you are enrolling in an auto-renewing subscription of Zookal Study Premium. Cancel at anytime.
Auto-Renewal
Your Zookal Study Premium subscription will be renewed each month until you cancel. You consent to Zookal automatically charging your payment method on file NZ$19.99 each month after 1st month free period until you cancel.
How to Cancel
You can cancel your subscription anytime by visiting Manage account page, clicking "Manage subscription" and completing the steps to cancel. Cancellations take effect at the end of the 1st month free period (if applicable) or at the end of the current billing cycle in which your request to cancel was received. Subscription fees are not refundable.
Zookal Study Premium Monthly Subscription Includes:
Ability to post up to ten (10) questions per month.
20% off your textbooks order and free standard shipping whenever you shop online at
textbooks.zookal.co.nz
Unused monthly subscription benefits have no cash value, are not transferable, and expire at the end of each month. This means that subscription benefits do not roll over to or accumulate for use in subsequent months.
Payment Methods
Afterpay and Zip Pay will not be available for purchases with Zookal Study Premium subscription added to bag.
NZ$1.00 preauthorisation
You may see a NZ$1.00 preauthorisation by your bank which will disappear from your statement in a few business days..
Email communications
By adding Zookal Study Premium, you agree to receive email communications from Zookal.
Modern, industrialized societies depend on a wide range of chemical substances such as fuels, plastics, biocides, pharmaceuticals and detergents for maintaining the high quality lifestyle to which we aspire. The challenge is to ensure that while weenjoythebene?tsofthesesubstances,theirinevitablereleaseintoourbiosphere does not result in unwanted human and ecosystem exposures, and the risk of - verse effects. One response to this challenge has been the extensive effort to detect and analyze or monitor a multitude of chemicals in a variety of environmental media, especially toxic organic compounds in air, water, soils and biota. The c- ventionalmonitoringstrategyofsamplinglitersorkilogramsoftheenvironmental medium followed by analytical determination of the quantity of chemical in the sample extract has been the successful cornerstone of investigative environmental chemistry. No doubt, it will continue to be so. An extensive literature on these traditional techniques has evolved over the years. In parallel with conventional techniques, and I believe entirely complem- tary to them, a variety of in situ sensing systems have been developed which operate on the principle of the preferential partitioning of contaminants into a - vice, often at concentrations which are large multiples of environmental levels. Advocates point out that these partitioning devices have the advantage of integr- ing chemical concentrations over a prolonged period, thus “averaging” ambient levels. Their high partition coef?cients can yield signi?cant quantities of analyte and reduce problems arising from short-term pulses of concentration and from sample contamination.