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Description
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Items
Standard
Characteristic
It should be
yellow or yellowish powder, odorless and tasteless. Soluble in 80% to 92%
ethanol or 70% to 80% acetone, insoluble in water or absolute alcohol.
Identification
take this
product about 20 mg, add 90% ethanol 2 ml dissolved, add 10% lead acetate
solution 2 ml, namely a white precipitate.
take this
product about 0. Ig. add 0.1 mol/l sodium hydroxide solution 10ml and copper
sulphate solution drops, heated in water bath, turns purple.
take this product about 25 mg, add 1 ml of
nitric acid, vibration wave force, the solution is light yellow, plus 6 mol/l
of ammonia 10 ml, solution turns orange.
Take 10 mg of the test, according to the
request processing, according to the electrophoresis (general principles of
the 0541 fifth method), in the 19-26 kda should contain two main protein
band.
Soluble in
hexane content
<12.5%
Loss on
Drying
<8.0%
Residue on
Ignition
<0.3%
Heavy Metal
<20ppm
Nitrogen
Assay (on dried basis)
13.1% 〜17%
The total
number of aerobe
<
10OOcfu/g
Yeast &
Mold
< l00ctu/
E. Coli
Negative
FQA:
Q1 Can i get some samples
A1 Yes,
we can supply the free sample, but the shipping cost be paid by our customers.
Q2 How to
start orders or make payments
A2
Proforma invoice will be sent first after confirmation of order, enclosed our
bank information. Payment by T/T, L/C or Paypal or Escrow(Alibaba).
Q3 How to
confirm the Product Quality before placing orders
A3 You
can get free samples for some products,you only need to pay the shipping cost
or arrange a courier to us and take the samples. You can send us your
product specifications and requests,we will manufacture the products
according to your requests.
Q4 What's
your MOQ
A4 Our
MOQ is 1kg. But usually we accept less quantity such as 100g on the condition
that sample charge is 100% paid.
Q5 How
about delivery leadtime
A5
Delivery lead time: About 3-5 days after payment confirmed. (Chinese
holiday not included)
Q6 Is
there a discount
A6
Different quantity has different discount.
Q7 How do
you treat quality complaint
A7 First
of all, our quality control will reduce the quality problem to near zero. If
there is a real quality problem caused by us, we will send you free goods for
replacement or refund your loss.
Q8 How to
contact us
A8 You
can chat with us by Trademanager,MSN&Skype Online.
You can choose your interested products and send inquiry to us.
You can dial our telephone directly or send Email to us., you will
get our reply.
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