Samples for chemical analysis

1. Solid sample: Type A (lump, plate, bar, etc.)

　Researchers should shape solid mass into subdivided pieces. To quantify major components, such a piece has to be dozens milligrams to one hundred milligrams. To quantify only trace impurities, such a piece has to be hundreds milligrams to several grams. Sample pieces having varied weights lead to large uncertainty on analytical results.

　It should be noted that minimum sample pieces are dependent on an analytical order as follows: (1) minimally 2 pieces for ICP-AES analysis, (2) additional 2 pieces for gaseous analysis of carbon and/or sulfur, (3) additional 2 pieces for gaseous analysis of oxygen and/or nitrogen, and (4) additional 2 pieces for gaseous analysis of hydrogen. Sometimes, erroneous results will be obtained. Hand us enough amount of sample including reserve pieces at least 12 to be obtained analytical values from (1) to (4). Sampling without accidental contamination must be carefully conducted by researcher oneself.

　Previously, notify us sample information (e.g., very small amount of sample, oxidation, dehydrogenation, etc.).

2. Solid sample: Type B (powder, lathe waste, etc.)

　Hand us enough amount of sample (e.g., hundreds milligrams to several grams) in a closed container. Be careful with hygroscopic materials and sample oxidation.

3. Thin-film sample

　If possible, hand us two substrates (more than 1 cm²) for each sample. Researcher cannot find an erroneous result with one sample.

4. Liquid sample

　Liquid sample must be placed in a sealed bottle. Please notify us sample information (e.g., solvent, solute, additive agent, etc.).