D-Tryptophan CAS 153-94-6 (HD-Trp-OH) Assay 98.5~101.0% Factory

Kawakawa
Tangohia kia 1 karamu o tenei hua, taapirihia te 50ml wai kia memeha, ka ine kia rite ki te ture (Ture Whanui 5.4).Ko te uara pH kia 5.4~6.4.
Te tuku otinga
tangohia 0.5g o tenei hua, tāpiri 2mol/L waikawa pūmāota wairewa 20ml ki te tareka, kia rite ki te ultraviolet-kitea spectrophotometry (General ture 0401), ine i te tuku i te 430nm roangaru, kaua e iti iho i te 95.0%.
pūhaumāota
Tangohia kia 0.25 karamu o tenei hua ka tirohia i runga i te ture (Ture Whanui 0801).Ki te whakatauritea ki te otinga whakahaere i mahia mai i te 0.02% o te wairewa konutai konutai paerewa, kaua e nui ake te aro ().
pūkawa
Tangohia te l.0g o tenei hua ka tirohia i runga i te ture (Ture Whanui 0802).Ka whakatauritea ki te otinga whakahaere i mahia mai i te 0.02% o te otinga konupora konukawata paerewa, kaua e nui ake te aro ().
Te tote haukinia
Tangohia te 0.10g o tenei hua ka tirohia i runga i te ture (Ture Whanui 0808).Ka whakatauritea ki te otinga whakahaere i mahia mai i te 0.02% o te wairewa haukinia haukinia paerewa, kaua e hohonu ake ().
Ētahi atu waikawa Amino
Tangohia te 0.30g o tenei hua, hoatu ki roto i te ipu ine 20ml, tāpirihia te 1 mol/L wairewa waikawa pūmāota 1 ml me te wai kia memeha, waimeha ki te wai ki te tauine, ruru pai, hei otinga whakamatautau;kia tika te tango 1 ml, hoatu ki roto i te ipu ine 200ml, waimeha kia tauine ki te wai, ruru pai, ka whakamahia hei otinga whakahaere.Tangohia te 10mg o te mana tryptophan me te mana tyrosine, ka maka ki roto i te ipu ine 25ml ano, 1 ml o te 1 mol/L wairewa waikawa puota me te nui o te wai ka taapirihia hei whakakore i te otinga.Ka waimeha ki te tauine ki te wai, ka ruia kia puta he otinga pai mo te punaha.E ai ki te whakamatautau chromatography paparanga angiangi (General 0502), mimitihia nga otinga e toru i runga ake i ia 2 μL, i runga i te pereti paparanga angiangi silica gel G, me te n-butanol-glacial acetic acid-water (3:1:1) ka horahia, ka horahia, ka whakamaroke, ka rehuhia ki te ninhydrin i roto i te wairewa acetone (1-50), whakamahana i te 80 ℃ tae noa ki te puta o te tohu *, ka titiro tonu.Ko te otinga whakahaere me whakaatu he waahi marama, me te otinga e tika ana ma te punaha e whakaatu kia rua nga waahanga kua wehea.Mena ka whakaatuhia e te otinga whakamatautau nga waahi poke, kaua te tae e hohonu ake (0.5%) i te waahi matua o te otinga whakahaere.
Ngaronga i te whakamaroke
Tangohia tenei hua, whakamaroke i te 105 ℃ mo te 3 haora, ko te mate taimaha kaua e neke ake i te 0.2% (Ture Whanui 0831).
Te toenga i runga i te mura
Tangohia te 1.0g o tenei hua ka tirohia i runga i te ture (Ture whanui 0841).Ko te toenga e toe ana kaua e neke ake i te 0.1%.
Tote rino
Tangohia tenei hua 1.0g i muri i te wera me te pungarehu, tāpirihia te waikawa pūhaumāota (2ml) ki te toenga, whakamarokehia ki runga i te pati wai, ka tāpirihia te waikawa pūhaumāota waimeha (4ml), memeha i roto i te wera iti, tāpiri wai (30ml) me te haukinia persulfate (50mg), ka tirotirohia kia rite ki te ture (Ture whanui 0807), kaua e hohonu ake (0.002%) i te otinga whakahaere i hangaia i te otinga rino paerewa.
Nga Korewa Taamaha
Ko te toenga e waiho ana i raro i te mea tango i te toenga mura kia kaua e neke ake i te 10 nga wahanga mo ia miriona o te konganuku taumaha ina tirohia e te ture (General Principles 0821, Ture II).
Tote Arsenic
tangohia te 2.0g o tenei hua, tāpirihia te 5ml waikawa pūmāota me te 23ml wai kia memeha, tirohia kia rite ki te ture (Ture General 0822 ture tuatahi), me whai ki nga tikanga (0.0001%).
Endotoxin huakita
tangohia tenei hua, taapirihia te wai whakamatautau endotoxin tangata, ka wera ki te 80 ℃ ki te memeha, tirohia kia rite ki te ture (General 1143), ia lg o tryptophan kei roto endotoxin me iti iho i te 50EU.(Mo te werohanga)
Te Whakatau Ihirangi
Tangohia tenei hua mo te 0.15g, te pauna tika, te taapiri i te waikawa waikawa 3ml kua rewa, taapirihia te waikawa acettic glacial 50ml, kia rite ki te tikanga titration pea (Ture Whanui 0701), me te wairewa wairewa titration waikawa waikawa (0.1 mol/L), me te i whakatikahia nga hua o te titration me te whakamatautau patea.Ia 1 ml o te wairewa titration waikawa perchloric (0.1 mol/L) e rite ana ki te 20.42mg o C11H12N2O2.