1. A method for vaporizing a liquid or solid sample for analysis, comprising:
a) providing a micropyrolyzer, comprising:
a substrate having a suspended membrane formed thereon, the membrane having a surface for accepting the sample, wherein the substrate is selected from the group consisting of semiconductors and dielectrics; and
a resistive heating element disposed on the membrane;
b) depositing the sample on the sample-accepting surface of the membrane, wherein the sample comprises a fatty acid or a mixture containing fatty acids;
c) introducing a reagent chemical to the sample, wherein the reagent chemical comprises a methylation reagent;
d) heating the sample on the membrane with the resistive heating element to form a vapor; and
e) removing the vapor from the micropyrolyzer for chemical analysis of the vapor.
2. The method of claim 1, wherein the sample size is less than 3 microliters.
3. The method of claim 1, wherein the sample heating rate is greater than 20\xb0 C. per millisecond.
4. The method of claim 1, wherein the sample heating rate is greater than 40\xb0 C. per millisecond.
5. The method of claim 1, wherein the sample heating rate is greater than 60\xb0 C. per millisecond.
6. The method of claim 1, wherein the sample can be heated to a temperature of up to 1000\xb0 C.
7. The method of claim 1, wherein the heating requires less than 1 Watt of power.
8. The method of claim 1, wherein the reagent chemical comprises tetramethylammonium acetate, trimethylphenylammonium hydroxide, phenyl-trimethylammonium fluoride, N,N-Dimethylformamide dimethyl acetal, or (m-trifluoro-methylphenyl) trimethylammonium hydroxide.
9. The method of claim 1, wherein the reagent chemical comprises tetramethylammonium hydroxide.
10. The method of claim 1 wherein the substrate comprises silicon.
11. The method of claim 1, wherein the membrane comprises a material selected from the group consisting of silicon nitride, polysilicon, silicon oxynitride and silicon carbide.
12. The method of claim 1, wherein the resistive heating element comprises a circuitous metal trace.
13. The method of claim 12, wherein the metal comprises a metal selected from the group consisting of platinum, molybdenum, titanium, chromium, palladium, gold, tungsten, and combinations thereof.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A first Bluetooth device comprising:
a Bluetooth module configured for performing Bluetooth communication with a second Bluetooth device;
a Radio Frequency Identification (RFID) reader; and
a controller configured for:
displaying a menu for Bluetooth connection using an RFID in a Bluetooth communication mode;
when the menu for the Bluetooth connection using the RFID is selected by a user, activating the RFID reader;
reading RFID information from an RFID tag of the second Bluetooth device through the RFID reader;
extracting bonding information from the RFID information, the bonding information including a Personal Identification Number (PIN) Code of the second Bluetooth device and a Bluetooth device address of the second Bluetooth device;
when determining that a security mode is set, sending the PIN Code to the second Bluetooth device and exchanging a link key for an encryption procedure with the second Bluetooth device; and
when determining that the security mode is not set, exchanging the link key for the encryption procedure with the second Bluetooth device without sending the PIN Code to the second Bluetooth device.
2. The first Bluetooth device according to claim 1, wherein the first Bluetooth device further comprises an RFID Tag that stores bonding information of the first Bluetooth device.
3. The first Bluetooth device according to claim 1, wherein said controller is further configured for informing the user when the RFID reader is activated.
4. The first Bluetooth device according to claim 3, wherein the controller is further configured for informing the user when pairing and connection between the first Bluetooth device and the second Bluetooth device are successfully established.
5. A method for performing a pairing procedure for a Bluetooth connection by a first Bluetooth device, comprising the steps of:
displaying a menu for Bluetooth connection using a Radio Frequency Identification (RFID) in a Bluetooth communication mode;
when the menu for Bluetooth connection using the RFID is selected by a user, activating an RFID reader of the first Bluetooth device,
reading RFID information from an RFID Tag of a second Bluetooth device through the RFID reader;
extracting bonding information from the RFID information, the bonding information including a Personal Identification Number (PIN) Code of the second Bluetooth device and a Bluetooth device address of the second Bluetooth device;
when determining that a security mode is set, sending the PIN Code to the second Bluetooth device and exchanging a link key for an encryption procedure with the second Bluetooth device; and
when determining that the security mode is not set, exchanging the link key for the encryption procedure with the second Bluetooth device without sending the PIN Code to the second Bluetooth device.
6. The method according to claim 5, further comprising storing bonding information of the first Bluetooth device in an RFID Tag of the first Bluetooth device.
7. The method according to claim 5, further comprising informing the user when the RFID reader is activated.
8. The method according to claim 5, further comprising informing the user when pairing and connection between the first Bluetooth device and the second Bluetooth device are successfully established.