Test intems

Specification (AJI)

Specification (USP)

Specification (CP2000)

Specification(FCC)

Appearance

White crystal or White powder

Appraisal

Test with Infrared Absorption Spectrometer

Specific rotatory power

+14.9°- +16.0°

+14.9°- +17.3°

+14.5°- +16.0°

+14.5°- +16.5°

Solubility

≥ 98.0%

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≥ 98.0%

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Chlorinity

≤ 0.020%

≤ 0.05%

≤ 0.02%

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Amine salt (NH₄)

≤ 0.02%

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≤ 0.02%

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Sulfate (SO₄)

≤ 0.020%

≤ 0.03%

≤ 0.02%

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Ferric salt (Fe)

≤ 10PPm

≤ 30PPm

≤ 10PPm

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Heavy metal (Pb)

≤ 10PPm

≤ 15PPm

≤ 10PPm

≤ 30PPm

Arsenic salt (As₂O₃)

≤ 1PPm

---

≤ 1PPm

≤ 3PPm

Other amino acid

Qualified

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≤ 0.5%

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Drying loss

≤ 0.20%

≤ 0.2%

≤ 0.2%

≤ 0.1%

Burning residues (sulfated)

≤ 0.10%

≤ 0.4%

≤ 0.1%

≤ 0.1%

Content

99.0-100.5%

98.5-101.5%

≥ 98.5%

98.5-101.5%

PH Valve

5.5-6.5

5.5-7.0

5.5-6.5

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Organic volatiles

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Qualified

---

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Lead

---

---

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≤ 10PPm