LabAssay™ Phospholipid
LabAssay™ 磷脂检测试剂盒
磷脂连同糖蛋白、胆固醇和蛋白是生物膜的主要组成成分,与脂肪的乳化、吸收和血液凝固等重要功能密切相关。本产品是基于N-乙基-N-(2-羟基-3-磺丙基)-3'5-二甲氧基苯胺钠盐(DAOS)的蓝色显色酶法试剂。通过微孔板法检测小鼠血清中的磷脂含量。
◆检测原理
样品中的磷脂(卵磷脂、溶血卵磷脂、鞘磷脂)在磷酸酶D的作用下水解,释放出胆碱。游离胆碱在胆碱氧化酶的作用下被氧化成甜菜碱,同时生成过氧化氢。产生的过氧化氢在过氧化物酶 (POD) 的作用下定量氧化缩合 DAOS 和 4-氨基安替比林,生成蓝色染料。通过检测蓝色染料的吸光度,计算得到样品中磷脂的浓度。
◆产品性能
标准曲线范围:75.0~596.1 mg/dL
检测时间:约 10 min
检测样品:血清、血浆(小鼠、大鼠、人)
所需样品量:2 μL
检测波长:主波长 505 nm,副波长 600 nm
◆试剂盒组成
缓冲液:50 mL ×3瓶
显色剂:50 mL 用×3瓶
标准溶液:5 mL ×1瓶
◆标准曲线示例
◆检测操作方法
微孔板法
根据下表中的条件,进行反应。
Test |
标准 |
空白 |
|
显色试剂 |
300 μL |
300 μL |
300 μL |
待测物 |
血清 2 μL |
标准溶液 2 μL |
—— |
充分混合,37°C下加热 5 min。 以空白为对照,在600 nm*2 处检测样品以及标准溶液的吸光度。 |
*2 双波长检测时,主波长 600 nm / 副波长 700 nm。
◆加标回收测试
人样品
人样品 |
添加量(mg/dL) |
检测值(mg/dL) |
回收量(mg/dL) |
回收率(%) |
血清样品 |
0 |
216.6 |
||
152.4 |
361.6 |
145 |
95.20% |
|
204.2 |
412.4 |
195.8 |
95.90% |
|
262.3 |
462.8 |
246.2 |
93.90% |
|
314.2 |
521.9 |
305.3 |
97.10% |
|
血浆(EDTA)样品 |
0 |
216.5 |
||
152.4 |
359.7 |
143.2 |
94.00% |
|
204.2 |
403.5 |
187 |
91.60% |
|
262.3 |
466.6 |
250.1 |
95.30% |
|
314.2 |
533.5 |
317 |
100.90% |
小鼠样品
小鼠样品 |
添加量(mg/dL) |
检测值(mg/dL) |
回收量(mg/dL) |
回收率(%) |
血清样品 |
0 |
285.3 |
||
152.4 |
438.1 |
152.8 |
100.20% |
|
204.2 |
486.6 |
201.3 |
98.60% |
|
262.3 |
532 |
246.7 |
94.00% |
|
314.2 |
601.3 |
316 |
100.60% |
|
血浆(EDTA)样品 |
0 |
111.5 |
||
152.4 |
256.5 |
145 |
95.10% |
|
204.2 |
311.2 |
199.7 |
97.80% |
|
262.3 |
368.5 |
257 |
98.00% |
|
314.2 |
432.7 |
321.1 |
102.20% |
大鼠样品
大鼠样品 |
添加量(mg/dL) |
检测值(mg/dL) |
回收量(mg/dL) |
回收率(%) |
血清样品 |
0 |
138.1 |
||
152.4 |
291 |
152.9 |
100.30% |
|
204.2 |
345.1 |
207 |
101.40% |
|
262.3 |
395.4 |
257.3 |
98.10% |
|
314.2 |
459.7 |
321.6 |
102.30% |
|
血浆(EDTA)样品 |
0 |
97.8 |
||
152.4 |
246.3 |
148.5 |
97.40% |
|
204.2 |
298.6 |
200.8 |
98.30% |
|
262.3 |
352.3 |
254.5 |
97.00% |
|
314.2 |
422.5 |
324.7 |
103.30% |
◆样品检测案例
人血清样品
检测值(mg/dL) |
mean |
SD |
CV(%) |
||
人血清 |
240 |
223.9 |
231.9 |
11.4 |
4.9 |
人血浆(EDTA) |
211 |
212.6 |
211.8 |
1.1 |
0.5 |
正常CD-1(ICR)雄性小鼠血清(稀释20%)
No. |
检测值(mg/dL) |
mean |
SD |
CV(%) |
|
1 |
242.1 |
239.8 |
241 |
1.6 |
0.7 |
2 |
213.6 |
214.2 |
213.9 |
0.44 |
0.2 |
3 |
185.5 |
180.8 |
183.1 |
3.3 |
1.8 |
4 |
201.5 |
194.7 |
198.1 |
4.86 |
2.5 |
5 |
166.8 |
175.3 |
171 |
5.97 |
3.5 |
正常CD-1(ICR)雄性小鼠血浆(K2EDTA)
No. |
检测值(mg/dL) |
mean |
SD |
CV(%) |
|
1 |
108.2 |
114.5 |
111.4 |
4.45 |
4 |
2 |
124.1 |
121.8 |
122.9 |
1.61 |
1.3 |
3 |
107 |
99.7 |
103.4 |
5.15 |
5 |
4 |
120.2 |
109.7 |
115 |
7.41 |
6.4 |
5 |
134.4 |
135.2 |
134.8 |
0.58 |
0.4 |
正常 Sprague Dawley 雄性大鼠血清(稀释10%)
No. |
检测值(mg/dL) |
mean |
SD |
CV(%) |
|
1 |
137.6 |
131.5 |
134.6 |
4.28 |
3.2 |
2 |
201.3 |
197.3 |
199.3 |
2.88 |
1.4 |
3 |
167.3 |
169.6 |
168.5 |
1.62 |
1 |
4 |
159.7 |
160.2 |
160 |
0.33 |
0.2 |
5 |
166 |
161.1 |
163.5 |
3.52 |
2.2 |
正常 Sprague Dawley 雄性大鼠血浆(K2EDTA)
No. |
检测值(mg/dL) |
mean |
SD |
CV(%) |
|
1 |
99 |
96.4 |
97.7 |
1.84 |
1.9 |
2 |
126.9 |
118.7 |
122.8 |
5.82 |
4.7 |
3 |
109.5 |
106.2 |
107.9 |
2.35 |
2.2 |
4 |
121.3 |
110.7 |
116 |
7.5 |
6.5 |
5 |
129.3 |
113.9 |
121.6 |
10.9 |
8.9 |
正常雄性比格犬血清
No. |
检测值(mg/dL) |
mean |
SD |
CV(%) |
年龄 |
|
1 |
365.7 |
381 |
373.3 |
7.64 |
2 |
4 |
2 |
283.8 |
264.4 |
274.1 |
9.74 |
3.6 |
6 |
3 |
375.1 |
334.2 |
354.6 |
20.49 |
5.8 |
6 |
4 |
287.5 |
288 |
287.8 |
0.26 |
0.1 |
11 |
5 |
459.9 |
484.8 |
472.3 |
12.47 |
2.6 |
12 |
6 |
300.2 |
306.3 |
303.3 |
3.06 |
1 |
6 |
7 |
271.8 |
278.4 |
275.1 |
3.34 |
1.2 |
10 |
8 |
276.4 |
279.3 |
277.8 |
1.46 |
0.5 |
4 |
正常雄性比格犬血浆(EDTA)
No. |
检测值(mg/dL) |
mean |
SD |
CV(%) |
年龄 |
|
1 |
340.4 |
316.2 |
328.3 |
12.11 |
3.7 |
4 |
2 |
321.5 |
345.1 |
333.3 |
11.76 |
3.5 |
6 |
3 |
351.1 |
374.4 |
362.8 |
11.69 |
3.2 |
10 |
4 |
322.8 |
327 |
324.9 |
2.1 |
0.6 |
12 |
5 |
337.4 |
364 |
350.7 |
13.27 |
3.8 |
6 |
6 |
303.3 |
316.7 |
310 |
6.72 |
2.2 |
11 |
7 |
318.9 |
321.5 |
320.2 |
1.31 |
0.4 |
10 |
8 |
310.7 |
306 |
308.4 |
2.35 |
0.8 |
12 |
正常雄性短毛猫血清
No. |
检测值(mg/dL) |
mean |
SD |
CV(%) |
年龄 |
|
1 |
244.8 |
246.4 |
245.6 |
0.8 |
0.3 |
3 |
2 |
193.7 |
188.3 |
191 |
2.69 |
1.4 |
3 |
3 |
236.3 |
240.1 |
238.2 |
1.89 |
0.8 |
6 |
4 |
229.7 |
229.9 |
229.8 |
0.13 |
0.1 |
4 |
5 |
226.7 |
227.4 |
227 |
0.38 |
0.2 |
6 |
6 |
239.8 |
236.2 |
238 |
1.8 |
0.8 |
6 |
7 |
305.3 |
299.4 |
302.3 |
2.93 |
1 |
1 |
8 |
159.6 |
157.6 |
158.6 |
0.98 |
0.6 |
1 |
正常雄性短毛猫血浆(EDTA)
No. |
检测值(mg/dL) |
mean |
SD |
CV(%) |
年龄 |
|
1 |
214.5 |
212 |
213.3 |
1.24 |
0.6 |
0.5 |
2 |
114.9 |
116.9 |
115.9 |
0.98 |
0.8 |
1 |
3 |
199.8 |
194.8 |
197.3 |
2.52 |
1.3 |
3 |
4 |
180.9 |
184.6 |
182.8 |
1.85 |
1 |
0.5 |
5 |
195.6 |
201.5 |
198.5 |
2.94 |
1.5 |
3 |
6 |
143.7 |
139.3 |
141.5 |
2.21 |
1.6 |
3 |
7 |
168.2 |
166.3 |
167.2 |
0.92 |
0.5 |
0.5 |
8 |
183.7 |
178.2 |
181 |
2.73 |
1.5 |
1 |
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※ 产品已更新,旧编号为:296-63801
参考文献
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4. |
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5. |
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