Keep my session open?
Ending In 
The session is expired
Your session has expired. For your security, we have logged you out.
Would you like to log in again?

Amino Acid Analysis by TLC Lab Activity.

8-164 8-164R
Explore the Theory of Chromatography.

  • Visually determine the unknowns
  • Target grades 10-14
Students learn the theory of chromatography; then separate two different unknown amino acid mixtures using thin layer chromatography (TLC) with amino acid standards run alongside the unknowns. Ninhydrin is used as a visualizing agent; then the rate of flow (Rf) values are calculated for each spot identified on the chromatograms. Students are challenged to predict the migration of the amino acids on the TLC after looking up the structures and pKa values of the four amino acid standards. The unknown components are identified by comparing the Rf values from the unknown amino acid mixtures to Rf data obtained from the four known amino acid standards. Designed for 24 students working in six groups of 4.

Ordering information: Kit includes Instructor Manual, Student Manual, Student Data Sheets, Amino Acid Standards, Unknown Amino Acid Mixture I, Unknown Amino Acid Mixture II, Silica Gel Strips, Chromatography Solvent, Toothpicks, Foil to cover Chromatography Chambers, Ninhydrin, Acetone, Spray Bottles. Hair Dryer, 600 mL beakers for chromatography chambers, clear plastic rulers, and standard laboratory supplies are required but not included.

Delivery information: Due to the nature of this item, it cannot be shipped by air under any circumstances. Please select ground shipping at time of checkout.



   
 

ORDER

Item # Description Includes No. of Lab Groups Unit Availability Price Quantity
470024-062 Amino Acid Analysis by TLC Lab Activity
Hazardous Product
Teacher's Guide and Student Copymaster 6 Kit of 1 Retrieving Restricted
470024-304 Amino Acid Analysis By TLC Lab Activity, Refill Kit
Kit of 1 Retrieving Restricted
restricted This product is marked as restricted and can only be purchased by approved Shipping Accounts. To apply for a shipping account number, click here. If you need further assistance, call Customer Service at 800-962-2660 or email wardscs@vwr.com.

WRITE A REVIEW

Need help?

  • Whatever you have to say, positive or negative, is important to us.
  • Providing feedback takes only seconds.
  • Your feedback will be made available to the public on the web.

WARDSCI.com will publish your name as wardsci.com user.
You can use this name, or edit and save a nickname.
We recommend authors use their first and last initial.

Please confirm your profession

Example: Education

Please confirm your role

Example: Teacher

Please confirm your location

Example: New York, NY

REVIEWS (0)

Total Ratings: 0
Avg. Ratings: 0.0 out of 5

Sort all by:

 
Review & Compare Alternatives
We found alternative products that can save you up to  per item-unit.  To compare product details, select up to 3 alternatives below and click Compare Selected. To add items to your basket, enter a quantity and click Add to Basket.

Original Product:

Description Catalog Number Availability Unit Your Price Price Per Qty
 

Terms and Conditions

 

Ward's Science is Here to Help You
We've made it easy to place your Ward's Science order by providing all the information you need below.
 
Terms and Conditions of Product Sale
All orders are governed by the Terms and Conditions of Product Sale accessible here. By placing an order, you represent that you have read and agree to the Terms and Conditions of Product Sale.
 
Shipping Terms
All orders will incur shipping and handling fees added to the total order value. Shipping charges may vary based on the nature of the product, total weight, destination, delivery date, and delivery method. Orders will ship via UPS carrier at current published rates. Shipping costs are estimated at the time of online order. Orders required to ship by motor freight may incur an additional shipping charge. All orders $24.99 or less (pre-tax) will be subject to an additional $7.00 handling fee. Our shipping terms are FOB shipping point unless otherwise specified. For more information regarding specific shipping terms for your account, contact your Ward's Science Account Manager. Visit wardsci.com/repfinder to locate a representative in your area.
 
Order Online and Save!
Receive FREE standard ground shipping on orders of $250 or more when you place your order online at wardsci.com. Order total must be at least $250 before tax; total may include live and hazardous materials, however these materials will remain subject to standard shipping charges and fees. Excludes Alaska and Hawaii.
 
Chemical & Hazardous Shipping Fee
Materials classified as hazardous by the D.O.T. may include, but are not limited to, chemicals, microbiological specimens, or activity kits containing these materials. If your order contains an item classified as hazardous by the D.O.T., a minimum $27.50 fee will be charged for each order. Orders for chemicals and hazardous materials will only be accepted from educational and research institutions; we will not ship chemicals to individuals. Select chemicals are now available with Poison Packs to enable faster shipping. Previously, these chemicals shipped freight within 7-14 days and incurred a $70.00 freight shipping charge. Now, added Poison Packs enable your chemicals to ship via UPS to arrive within 3-4 days, eliminating the $70 freight charge. For a list of chemicals that include Poison Packs, visit wardsci.com/chemicalship .
 
Live Materials Delivery & Guarantee
All micro life cultures will be delivered to you within two business days when order is placed before 12:00 om EST. (demonstration plates, microalgae, Nostoc excluded). Your specimens or cultures will arrive in good condition or we will send a free replacement as soon as the next day. Requesting a delivery date of Wednesday, Thursday, or Friday ensures healthy delivery of your live specimens.
 
Bacteria and Pathogens
Shipping pathogens and bacterial cultures to high schools and individuals is prohibited by the Federal Health Service. State or local authorities may require a permit before we can ship pathogens to you. Colleges and universities are permitted to order pathogens and bacterial cultures through an institutional purchase order only.
 
Product Representation
Every effort is made to ensure accuracy in our product images, descriptions, and pricing prior to publication. However, due to occasional changes made by vendors after date of publication, the physical appearance of items may change or vary in color from what is shown in the catalog. We assure the items you receive will satisfy all product specifications and requirements. Catalog pricing and product availability is subject to change. If a typographical error in pricing should occur, we are not obligated to honor the misprinted price. Please check our website for the most recent updates to product images, descriptions, availability, and pricing.
 
Your Favorite Items, Always in Stock
Thousands of our best-selling products always stocked and ready when you need them, so you don't have to wait for the items you use most. Items are shipped within 48 hours of ordering when order is received electronically or by phone prior to 1:00 pm EST. In-stock promise and 48-hour shipping time excludes hazardous chemicals and exceptional order quantities which will be made available at lead time. Availability subject to change in the event of natural disaster or forces of nature affecting sourcing, shipping, transportation, or availability of living material required for producing saleable goods. Ward's Science will contact the customer directly to communicate the occurrence of such an event and provide alternate materials when available. Current stock and availability for all products available online on every product page.
 
Promotional Exclusions
Unless otherwise specified, any item with a price ending in '9' (i.e. $5.09, $14.99, $100.89) is excluded from special offers, discounts, and promotions. Promotional discounts may not be combined with any other offers, discounts or promotions. Offers for free shipping include standard ground shipping only.
 
Credit & Invoicing
Credit is extended to all educational institutions. Terms are net 30 days from the date of invoice. Teachers' personal orders are always welcome. For more information email wardscs@vwr.com.
 
Sales Tax
Sales tax (state and local) is based on shipping destination and will be included on your invoice. If you are exempt form sales tax, please provide the proper exemption documentation when placing your order. Exemption must be for the state of your shipping address. Visit us online to download a form at wardsci.com/taxexempt.
 
100% Satisfaction Guaranteed Returns
We accept product returns for any reason within 60 days of purchase. Items returned must be unused and in original packaging, and not damaged, written on, or defaced in any way. To return an item for refund, replacement, or credit, please email wardscs@vwr.com or call 800-962-2660 for a return authorization number and further instructions for return. Please have your order number readily available so that we can better assist you. In some cases, a restocking fee may apply. Items returned without prior authorization may not be accepted or credited. Items under warranty will be repaired or replaced at our discretion. To ensure the quickest return or replacements, we recommend you inspect all packages immediately upon arrival to ensure your satisfaction. A carrier inspection may be required.  

 

Print These Terms