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L-Carnitine

    1970-01-01

ITEMS

STANDARD

TEST RESULT

Appearance

White crystals or crystalline powder

Conforms

Appearance of solution

Clear and colorless

Clear and colorless

Specific rotation[a]D20°

-29.0°~-32.0°

-31.10°

pH

5.5~9.5

7.36

Loss on drying

0.50%

0.30%

Assay

97.0%~103.0%

99.03%

Residue on ignition

 0.10%

0.08%

Residue methanol

Absent

Conforms

Residue ethanol

5000ppm

Conforms

Heavy metals

10ppm

<10ppm

Arsenic

 1ppm

<1ppm

Chloride

 0.4%

<0.4%

Potassium

0.2%

<0.2%

Sodium

0.1%

<0.1%

Cyanide

Absent

Absent

Lead

3ppm

<3ppm

Mercury

0.1ppm

<0.1ppm

Cadmium

1ppm

<1ppm

Total plate count

1000cfu/g

<100cfu/g

Yeast&mold

100cfu/g

<10cfu/g

E.coli

Negative

Negative

Salmonella

Negative

Negative

 

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