These instruction apply to everything under $5000.

1. Find what you want. If you are not sure what equals a good price, get 3 different quotes. Some companies have price lists on the web, other companies you will have to phone or email to get a quote.
2. Read this document: I Want Document.
3. Fill out the purchase order form online: Cornell Procurement Gateway. You will need to provide a “business purpose”, which should explain how the purchase relates directly to research on the grant you are using. For example, for quartz wafers: “Business Purpose: substrate for aligned carbon nanotube growth for this project.” If you are ordering something that doesn't relate directly to research, you can't put it on a grant: it must go on start-up funds. If the total comes to more than $500, you need Paul's approval FIRST (he'll forward it on to the appropriate person after approving it). For orders less than $500, send the order directly to Linda Hatch (lsh32).
4. When the order arrives, check that nothing is damaged or defective. Find the packing slip; print and sign your name on the packing slip and write the business purpose. Take the packing slip to the stockroom immediately, and place it in the basket at Linda's desk.

• For CCMR purchases, bring the packing slip up to the 6th floor of Clark. The CCMR approval address (for M07- account numbers) is finance@ccmr.cornell.edu.

• A small fraction of companies (1 out of 20?) will not take purchase orders. You can negotiate with Nick Brown (for LASSP purchases) or Cathy Wetterer (for CCMR purchases)

• For purchasing laser printer cartridges: We order from OfficeMax. Fill out a purchase order, but instead of a single account, split it across multiple (3-5) U76- numbers.The business purpose should be something like “printing data and papers.”

There are certain items which get used by everyone in the lab, which need to get replaced regularly. Examples include:

• Gas cylinders
• AFM tips
• Solvents such as acetone, IPA, methanol, 1165

It is the responsibility of everyone in the lab to make sure that these items do not run out. There is nothing suckier than getting stuck mid-process because someone else neglected to get a new bottle of acetone. If you use something up, replace it immediately.

Since we use so much solvent, we always keep 2 bottles of Acetone and IPA on hand. If you run out of one of these solvents, or need a more exotic chemical, chances are that you will be able to find it in the Chemistry stockroom. The chemistry stockroom is on the first floor of baker lab. You need to bring one of the black rubber carriers with you to transport the chemicals. I suggest wearing a glove on your non writing hand, so that you don't have to actually touch the chemicals. The chemicals are in the back room of the chemistry stockroom, separated by solvents and acids. On your way out, fill out the paper Purchasing form. Make sure to enter the number on the sticker with a barcode on the bottle, even though there is not explicitly a spot for that information on the form; also write the room number where the bottle will be kept (Clark C5). When the bottle is empty, put the sticker on the form on our chemical storage drawer.

One lab consumable that needs to be maintained are the gas cylinders used in nanotube growth and in various experiments throughout the lab. If you use up a gas cylinder, or find it empty, you MUST replace the cylinder and buy a new one. The procedure is the following:

1. Get a spare cylinder tank from the Gas Storage Room
2. Replace empty tank with spare tank
3. Get rid of Empty Tank
4. Order new spare tank from Airgas
5. Check new tank when it arrives and turn in gas invoice.

1. The gas storage rooms are in the hallway by the loading dock, and there should be a gas cylinder cart nearby. You need a stockroom key in order to get in to the storage room. Look at the red tags on the cylinders. Each tag has the PI's name and the gas type. Select the gas that you need, load it into the cart, and bring it to the lab.

2. Usually it is easier to have two people when changing cylinders if there is any piping attached. Before removing the piping, be sure to COMPLETELY discharge the cylinder through whatever exhaust is available. Move the old tank far out of the way, carefully. Then install the new tank.

3. Using the cart, take the discharged cylinder out to the loading dock. There are 2 stacks of cylinders. The one on the right (while facing the building), furthest out from the building is for discharged cylinders. Using the chain, lock the cylinder down with the rest of the empty cylinders. The company will pick up the cylinder with its next shipment.

4. It is easy to buy new tanks, and absolutely necessary. a. Go to the airgas website: www.airgas.com

b. Find the part number for the size/purity of the gas you want. If you are unsure, try to look at the gas tank you're replacing, it often has a label. The size is generally “300”.

c. After selecting the types and numbers of cylinders that you want. Now fill out a standard webreq form: http://purchasing-prod.cit.cornell.edu/WEBREQ/WEBFORM.jsp?formtype=0. In the shipping field choose C-5 Clark. Remember to turn in the PO when the cylinder arrives.

5. When the cylinder arrives, the building staff will put a invoice in the Chem room. It is your responsibility to go check that the cylinder put into the loading dock is what we want, put it into the cylinder storage room, and take the invoice to the stockroom.

Current Supplies:
In Clark cylinder room:

8 Nitrogen
2 Argon
2 Helium
1 Hydrogen

In Service corridor:
2 Hydrogen (1 partial)
2 Nitrogen (1 empty)

We need a blurb about which AFM tips to get. Could someone add this.

The stockroom website is: http://www.lassp.cornell.edu/stockroom/ you can get a key for the stockroom from Dave Bowman, so that you can go in at odd hours.

For single crystal copper, visit MTI For copper foil, Alfa Aesar get 25 um copper foil. Cat#13382

We get our quartz tubes from QSI, http://www.qsiquartz.com/ 819 East Street Fairport Harbor, OH 44077 800.229.2186

We get quartz tubing, 22mm inside diameter, 25mm outside diameter, 4' long. They're around $40/ea without fire-polishing. We've started getting fire-polished tubes because they kept sending us tubes with hairline cracks, which we don't feel comfortable using for processes involving gases. You can probably use them for air anneals, but in general we've had to throw out a rather high number of tubes. The number varies by shipment, but the risk makes me think that it's definitely worth getting the good ones, even though it costs more.

You must specify that you want the tubes fire-polished in the comments when you request a quote. They cost $60 each.

• Aventools - Tweezers (Anti-acid, Anti-magnetic: $23)
• Atomate – CVD furnace equipment
• Benchmark Technologies - High resolution chrome masks for photolith (~$800 per mask)
• Bulbs Direct - replacement bulb for AFM light source
• Bioanalystical systems - Reference electrodes for electrochemistry.
• CAD/Art Services - Laser printed (10,000-20,000 dpi) photolithography masks. Perfect for 10-20 micron min. feature size. ~ $60 per mask. Located in Bandon, OR. Used by Remcho Lab (Chemistry, OSU) and Cobden Lab (Physics, U. Washington).
• Cheap Tubes Inc. - A zip lock bag (1g) of 90% pure SWNTs for $100.
• Carbon nanotechnologies - The company started by Richard Smalley, the first company to sell nanotubes. Specialty products like double walled nanotubes, $500 per gram.
• Chem Stores - Chemicals eg. Acetone, Ethanol, IPA. Dry goods eg. glass vials, beakers. Located on ground floor of the Chemistry building. Closed for lunch. See further instructions below.
• Entegris - Wafer handling products
• Fisher Scientific - miscellaneous lab supplies
• Hoffman Materials ST cut quartz wafers for aligned growth.
• Industrial Gas and Welding, Corvallis - 752-8686 - Grade 5 Argon $75.46 per cylinder, Grade 5 Hydrogen $93.22 per cylinder, Standard grade Helium $57.00 per cylinder, Nitrogen, Methane. Ask Ethan for our customer number and index number.
• Kurt Lesker Comapany High purity metals for electrode fabrication.
• MacMaster Carr - Sheet metal and other construction materials
• Mark Optics - fused silica wafers
• Newport - electronics supplies (eg. BNC cables and connectors)
• Nova Electronics - an alternative source of oxidized silicon wafers (currently we use Silicon Quest).
• Photosciences - Best price for chrome mask for photolithography ~ $500.
• OSU Bookstore. refilled printer catridges. To make purchases at the OSU bookstore, get an account index from Ethan and take your OSU id card.
• Quater Research - Micromanipulators
• Quorpak - plastic products e.g. the plastic waste containers (carboys), plastic gloves (powder-free nitrile)…
• Sigma-Aldrich - Chemical and biomolecule suppliers
• Silicon Quest - silicon wafers. We had trouble with cyrstal defects on last batch.
• Strem Chemicals - Molybdenum catalyst
• Swagelok – Gas flow handling
• TCI America - Chemical reagents like surfactants and solvents. Fast delivery (1 or 2 days).
• Ted Pella - microscopy related lab supplies (eg. silver paint, diamond scribes, graphite & mica substrates)
• Upchurch Scientific - fluid handling components for flow cells
• University Wafer - silicon wafers. Used by Remcho lab (Chemistry, OSU). May offer dicing service.
• VWR - miscellaneous lab supplies (for example, quartz tubing) (in the past we've bought catalog # 63000-160)
• Wafernet - Raj Solanki suggested as a source for silicon wafers.