Preprocessing tool for microanalysis

Pinpoint concentration plate
In the analysis of trace component, it is sometimes important to efficiently concentrate
dilute solutions without contamination. The "pinpoint concentration plate" developedby Toray Research Center can quickly concentrate dilute solution to small spots.]
Please use this method to evaluate the residue after surface cleaning of electronic partsor for lot management of surface treatment agent, and so on.

What is pinpoint concentrate plate?
Pinpoint concentration plate is a special water-repellent plate developed by ourcompany (Japanese Patent No. 5870439).
When a dilute solution is dropped onto this plate, spherical droplets are formed on thesurface, and the solvent is evaporated from the droplets immediately afterward, so thatthe trace components dissolved in the liquid are concentrated into a small spot of about
several 10 μm to 200 μm diameter.
By measuring these spots with infrared spectroscopy (IR) and mass spectrometry (MS),qualitative analysis of components can be easily performed.

FT-IR measurement

1.0 μL drop bymicro syringe
Spot corresponding to100 ng of melt
(About 200 μm diameter)

Pinpoint concentration plate

Features of pinpoint concentration plate
No complicated pre-processing is required. Solutions can be concentrated in a short time
without contamination! In case of 1 μL chloroform solution, the time required forconcentration and spot formation is only about 10 seconds!
Possible to directly measure the samples concentrated on the plate with an infraredabsorption measurement method (microscopic transmission method).
Spots can be formed at more than 10 places on the plate by selecting the place to drop.
If the spots can be thoroughly cleaned after the infrared absorption spectrum measurement,
it is also possible to use the same places repeatedly!
As another application, it is possible to execute mass spectrum (MALDI-MS*) measurement(introduced in analysis case).
*：Matrix Assisted Laser Desorption/Ionization-Mass Spectrometry
Toray Research Center, Inc., New Business Promotion Dept.
〒520-8567 3-2-11 Sonoyama. Otsu-shi, Shiga pref.
TEL：077-510-9117（Dial-in）
E-mail : products.trc.mb@trc.toray

Analytical application examples
Qualitative analysis of trace residue components after cleaning the surface ofelectronic components.
Qualitative analysis of surface treatment agents for fibers, films, resin
molded products.
Screening analysis of chromatographic peaks such as TLC and HPLC.

Price
Starter set (1550-SS)￥275,000

2 Plates set (1550-02)¥200,000

Concentration plate（15mm×50mm×0.63mm）
Plate holder for IR measurement
Dedicated tweezer
Instruction manual

FAQ

2 pieces
1 piece1 piece1 bookThe plate can be processed to othershapes and sizes. Please contact us.

Q1 Will the plate crack if I drop it on the floor?
Since the plate is made of silicon substrate, it will be easily damaged if it isdropped. Please be careful about handling and never use it in a state where itis partly damaged. Please be careful thoroughly also when you dispose theplate. In addition, since handling will become easy by using dedicated tweezers
included in the starter kit, please consider about it.

Q2 Is not the measurement result influenced by surface treatment substance?
There is no influence of surface treatment substance. Since we are doing
molecular level surface modification (nano order thickness), there is no
influence of surface treatment substance.

Q3 I want to know the compatibility between solvent and plate?
For acidic and alkaline solutions, since water repellent effect on thesubstrate surface is lost, such solution cannot be used. Solvents with highvolatility such as chloroform become a spot cleanly in a short time. Alcohol andwater tend to spread slightly. High boiling point solvent (toluene etc.) takes
longer time to concentrate than chloroform but a clean spot is formed. If you
have any other questions, please do not hesitate to contact us.

Q4 Is it possible to warm the plate?
Mild warming of about 60 ° C is desirable. Please inquire us for details.
Toray Research Center, Inc., New Business Promotion Dept.
〒520-8567 3-2-11 Sonoyama. Otsu-shi, Shiga pref.
TEL：077-510-9117（Dial-in）
E-mail : products.trc.mb@trc.toray