L-乐虎国际官方网下载_乐虎app手机版-乐虎国际娱乐登录网址
 

L-乐虎国际官方网下载_乐虎app手机版-乐虎国际娱乐登录网址 is colorless to white crystalline powder, andit can dissolve in water,ethanol but do not dissolve in aether and acetone.It is mainly used in biochemical research,tissue culture,hepatic function test,flavor enhancer. L-乐虎国际官方网下载_乐虎app手机版-乐虎国际娱乐登录网址 can increase the seasoning effect, and also can be used as acid corrigent to improve the organic acid sour.


1、 Technical Grade L-alanine


Quality Standard

ITEM

LIMIT

ASSAY

98.5%~101.0%

SPECIFIC ROTATION [a]D20

+13.8°~+15.2°

(Transmittance)

≥90.0%

pH

5.7 ~ 6.7

CHLORIDE

≤ 0.02%

LOSS ON DRYING

≤0.20%

SULFATE(SO42-)

≤0.02%

IRON (Fe)

≤ 10 PPM

HEAVY METALS (Pb)

≤10 PPM

2、Optical pure grade L-乐虎国际官方网下载_乐虎app手机版-乐虎国际娱乐登录网址

Quality Standard

ITEM

LIMIT

ASSAY

98.5%~101.0%

SPECIFIC ROTATION [a]D20

+14.6°~+15.0°

(Transmittance)

≥95.0%

pH

5.9 ~ 6.7

CHLORIDE

≤ 0.002%

LOSS ON DRYING

≤0.20%

SULFATE(SO42-)

≤0.02%

IRON (Fe)

≤ 10 PPM

HEAVY METALS (Pb)

≤10 PPM

D- 乐虎国际官方网下载_乐虎app手机版-乐虎国际娱乐登录网址

≤0.02%

3、Food grade L-乐虎国际官方网下载_乐虎app手机版-乐虎国际娱乐登录网址

Quality Standard

(accord withAJI,JSFA8TH etc Standard)

ITEM

LIMIT

ASSAY

98.5%~101.0%

SPECIFIC ROTATION [a]D20

+14.2°~+15.2°

(Transmittance)

≥98.0%

pH

5.7 ~ 6.7

CHLORIDE

≤ 0.002%

LOSS ON DRYING

≤0.20%

RESIDUE ON IGNITION

≤ 0.10%

SULFATE(SO42-)

≤0.02%

IRON (Fe)

≤ 10 PPM

HEAVY METALS (Pb)

≤10 PPM

(Ammonium salt)[NH4+]

≤0.02%

ARSENIC (As2O3)

≤ 1 PPM

 

DL-乐虎国际官方网下载_乐虎app手机版-乐虎国际娱乐登录网址

DL-乐虎国际官方网下载_乐虎app手机版-乐虎国际娱乐登录网址 is a kind of chemicals, formula is C3H7NO2. DL-乐虎国际官方网下载_乐虎app手机版-乐虎国际娱乐登录网址 is the raw material for the produce of vitamin B6, metabolic medical microbiology and biochemical amino acids. DL-乐虎国际官方网下载_乐虎app手机版-乐虎国际娱乐登录网址 is colorless to white odorless needle crystalline or crystalline powder. It has a sweet taste. 5% aqueous solution’s PH value is 5.5~7.0.and it can melt and resolved in about 295~300℃. It has stable  chemical properties, easily soluble in water(16.72g/100ml,25℃),slightly soluble in ethanol, and no optical.


Quality Standard

(accord withAJI,JSFA8TH etc Standard)

ITEM

LIMIT

ASSAY

98.5%~101.0%

(Transmittance)

≥98.0%

pH

5.5 ~ 7.0

CHLORIDE

≤ 0.002%

LOSS ON DRYING

≤0.20%

RESIDUE ON IGNITION

≤ 0.10%

SULFATE(SO42-)

≤0.02%

IRON (Fe)

≤ 20 PPM

HEAVY METALS (Pb)

≤10 PPM

(Ammonium salt)[NH4+]

≤0.02%

ARSENIC (As2O3)

≤ 1 PPM

 
 
 
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